Setting Sophie Madan is really a huge idea, even if she received the modification of the car, but some parts are not modified, because these eavesdropping systems have been integrated into the car's on-board computer system and the host of the anti-concave system, and have become part of the host system, and these parts that cannot be changed are the best way to monitor her.

"You're terrible!" Alice said to Zhang Lan "angrily".

"Thanks for the compliment."

Zhang Lan was triumphant.

Alice's words are not compliments or hurtful words, Zhang Lan is very conscious and automatically thinks she is praising herself, don't doubt it, this kid has this cheeky ability.

Zhang Lan's cheekiness made An Lisi speechless for a while.

"Do you think this will work? Xiao Chenxi took a plate of freshly made osmanthus cake and put it in front of Zhang Lan, and asked Zhang Lan by the way.

"I don't know," Zhang Lan shook her head honestly.

The new finger picked up a piece of osmanthus cake and stuffed it into his mouth.

While talking, he chewed and said vaguely, "But our eavesdropping methods are so much hidden compared to the traditional eavesdropping methods, it should be quite effective, right?" Otherwise, we have spent so much effort before, wouldn't we have done useless work? Although Zhang Lan said very modestly, it could be heard from the words that this kid was quite confident in his eavesdropping methods.

Can you have confidence, anyone who sets the eavesdropping method as a part of the various subsystems in the car will be very confident.

A few little girls laughed a few times and didn't speak: to Zhang Lan's words, although a few girls haven't said anything, they are still quite confident, if these things from their own hands can be easily discovered, then they are too embarrassed, even if Sophie Madan is a CIA person, a few little girls are also very confident that Sophie Madan can't check out what Alice Group did in the car.

The surveillance of Sophie Madan is only a small matter, and it is more that Zhang Lan finds one in his heart.

It's just comforting, as several new projects of the company start one after another, there are more and more things for Alice Group, and Zhang Zongjun and Yang Zhi's work is getting busier and busier. Xiao Chenxi, who has entered the group to help Zhang Zongjun and Yang Zhi in the management of the company, has shocked the guys in the company with his profound management ability, and now he also has to stand alone, and he has been getting busier and busier recently.

The most busy thing this time is the Alice Shipyard project.

Although the completion rate of the entire shipbuilding project is not yet irrigated, some of the docks built in advance can already be used for ship construction projects, and the corresponding supporting projects have been put in place, and the technical personnel recruited from the country have completed the corresponding training work, and they already have the ability to build ships, but limited to the reasons of manufacturing experience, the largest displacement ships that Alice Shipyard can build are only 10,000-ton ocean-going shipping ships, and inland waterway ships with a displacement of less than 1,000 tons.

Although the first phase of the project has not yet been fully completed.

But since the shipbuilding can already be started, there is naturally no reason to put these projects that can be started here, and wait until the entire first phase of the project is fully completed before starting to receive orders.

Although Alice Group has money, it is not this money-losing method to be rich, and it is only right for a company to be able to start working as soon as possible to make money.

But now, the Alice Group, which has never encountered much difficulty, has encountered a dilemma on this project.

What difficulties did you encounter? To put it simply, it is internal and external difficulties, and internally it is the distrust of those customers who place orders; Externally, it was someone who maliciously pressed Alice Shipyard.

Despite the fame of the Alice Group, this fame is only in other industries engaged in by the Alice Group, in the shipbuilding industry, Alice is still a complete newcomer, the golden sign of the Alice Group, in this industry, it is not applicable.

For the choice to hand over their shipbuilding orders to Alice Shipyard, which has never had any shipbuilding experience, there are still few people who are willing to do so: the money in everyone's hands is not blown by the wind, so why not buy ships from which experienced shipyards with their own money, but choose to place orders for Alice Shipyard and let them practice with their own money? A ship is not cheap, even if it is intended to have a relationship with the Alice Group, but there is no such thing.

Reasonable, right? This cost is also a little bigger.

In order to be able to obtain the corresponding orders, the business departments and senior management of Alice Group have not been busy with this matter for a while.

This is a great opportunity for those who hate and fear the Alice Group, a perfect opportunity to stop the Alice Group from reaching their bottom to get something to eat, although they also know that this matter cannot be a fatal blow to the Alice Group, but their appetite is actually not big, as long as the Alice Group does not come to their territory to grab something to eat.

Unfortunately, it seems that Alice Group is not the kind of company that retreats when it encounters setbacks.

In order to cope with the current difficulties, just like now, it should have been a time for the family to have a lively breakfast, but Zhang Zongjun and Yang Zhi have not gone home for three consecutive days.

Xiao Chenxi and Alice didn't see anyone early in the morning, and in a huge courtyard, only Zhang Lan and Jill "Bei Bei were eating around the dining table, and it didn't look like a cold and lonely person.

And as for Jill, this girl was still forced to stay by Alice, and this girl was originally going to go out to deal with the problem, after eating.

The only thing I am happy about is probably the secretary team that the company has strengthened for Xiao Chenxi and Alice, because of the aggravation of the work, the original secretary team can no longer meet the needs of the work, not only Chenxi and Alice, but even Zhang Zongjun and Yang Zhi's secretary team have been further strengthened, and being able to get close to their bosses will be of great benefit to their future work and promotion.

There is no one in the family except for the hired domestic employees, and no one will enter the restaurant when they are eating now, Xiao Beibei, this girl is very unscrupulous, restoring her little appearance to the appearance of a sixteen or seventeen-year-old flower girl, holding a bowl of porridge and drinking it with relish. ,

"The shipbuilders, mechanics, and engineers we've recruited have basically been trained, right?

On a Tuesday morning after such a National Day, Zhang Lan took a sip of porridge.

Xinkou asked Jill who was eating with him.

This girl is also very concerned about the current situation encountered by the company, but Zhang Lan is more concerned about her own preparation, if you want to meet the enemy, it is best to cultivate your internal skills first.

The shipbuilding technicians, technicians, and engineers recruited by Zhang Lan were naturally recruited from various large, medium, and small shipbuilding companies and shipyards at home and abroad.

The recruitment of ordinary workers is simple.

Just for the Alice Group's golden signboard, after the Alice Group released the recruitment information of employees, this type of work that does not require too complex technology quickly recruited enough people and entered the pre-job training, and these experienced technicians, technicians and engineers were recruited.

Because the requirements for job skills and quality are quite strict, it is much more complex and serious.

Domestic recruitment is focused on shipyards in coastal cities that are in a state of shutdown and semi-shutdown, when the country was founded.

In order to vigorously develop the manufacturing industry, especially the shipbuilding industry, almost all coastal cities in China have built their own shipyards, but the scale and technical strength of these shipyards are poor, and the ability to cope with market competition is very weak, and the largest ships that can be built are usually only 1,000-ton cargo ships and 100-ton fishing boats.

No matter how many such shipyards are, because of their technical strength, their competitiveness will not go anywhere, in the tide of reform and opening up.

These shipyards, which are gradually being pushed to the market, are gradually being oppressed by the more competitive private shipyards and even the more powerful large shipyards on the verge of bankruptcy and semi-bankruptcy: the state has stopped giving blood to these shipyards, and these shipyards that are rigid in their thinking and do not know much about flexibility have either turned into butterflies after experiencing labor pains, or they have only cocooned themselves.

But as the saying goes, there are still 3,000 nails in rotten ships, even if these shipyards are down now, but after decades of technological accumulation, although the technical strength may not be strong, but in terms of specific technology, which one will have its own two brushes, and will also have its own strong technicians, technicians and engineers.

But the mechanics, technicians and engineers of these down-and-out shipyards are definitely the treasures of the treasures in the eyes of the Alice Group! Although the flexible, flexible mechanics, technicians and engineers may have already been recruited by the emerging private shipyards, there is still a lot of room left for the Alice Group, and this huge margin allows the Alice Group to recruit the people they want very calmly.

How many new shipyards are there? And how many of these old shipyards are on the verge of collapse and bucket collapse? To put it mildly, for this kind of highly professional talents, because of the limitations of a specific historical period, these talents, which were originally not many, are now in a strange "oversupply."

Not to mention the embarrassing situation, there are really those ship engineers who can't find jobs and have to set up stalls to sell small things in order to make a living, which really responds to the sentence "It is better to build an atomic bomb than to sell tea and eggs".

The mechanics, technicians and engineers who have so far chosen to stay in their own shipyards are not in their own brains and do not know how to be flexible.

It's not that I'm willing to guard the poverty in front of me, and I don't know how to make my life better.

No one is a fool, on the premise of not violating the basic principles of his own life, he will not eat big fish and meat, and would rather eat bran vegetables with his wife and children.

What's more, in this generation, there are too few people who can not violate their own principles of life.

The reason why these mechanics and technicians and engineers chose to do this, for those older old technicians and old engineers, is that they are reluctant to leave the jobs they have worked all their lives, and they are reluctant to let their old neighbors, and more importantly, now for these senior technicians, the conditions offered by those private shipyards are too much, ahem, and a little harsher in their eyes.

For those technicians and engineers who are relatively young, but have good strength, they are faced with the situation that the owners of private shipyards have set themselves too harsh conditions to go to; And those large state-owned shipyards with good conditions, people like themselves are still extremely bloated, have no strong relationships, and have no way to enter at all, they are in such a "high or low."

situation.

Since ancient times, there is a sentence of "learning to become a literary and martial artist, and selling it to the emperor's family", I have learned such a skill, if I just hold back in those small private shipyards, I am really too wronged by what I have learned, and I am too sorry for myself.

Even if it's a "selling emperor's family", these guys are just some nouveau riche buns, and they are Mao's "emperor's family"? And they really don't want to "succumb" to those private shipyards that are somewhat domineering, and those who can afford to open shipyards have a lot of money in their pockets, and they would rather hire some so-called "well-known" from abroad.

Famous.

Ship design and construction experts, in order to raise the reputation of their shipyards and show their technical strength, will not hire these young ship experts and engineers from the country with high salaries.

So these young and old mechanics, mechanics and engineers and specialists in shipbuilding were embarrassed, but now they are different.

The construction of the Alice Shipyard project has opened up a new opportunity for those who are reluctant to go to small private shipyards, but who are unable to enter large state-owned factories.

Alice Group recruits personnel for shipyards across the country, which is not only much more favorable than those private shipyards, but also has technical exchanges with those peers across the country: the scale of the shipyard built by Alice Group this time is very clear from various professional journals, shipyards of this size.

To what extent the demand for all kinds of talents will reach, no one can say without exaggeration that the second and third phases of the project, not to mention the far-reaching, as long as the first phase of the project can be completed, as long as their technical and design strength is sufficient, they can even build a large military ship with a full load displacement of more than four tons and a straight-through deck, such as the French "Mistral" class large amphibious assault ship. ,

Even roses.

Large military ships with tonnage surnames are no problem.

The ability to build warships of this level is also known as having this ability in any shipyard in China, but Alice Group has it! In the first phase of their project, there is a super-large dry dock with a length of meters and a width of Wangmi.

Theoretically, such a large dry dock can even build a displacement of 4 ports like the Kyiv-class aircraft carrier.

Multi-ton medium aircraft carrier.

This is the focus of the first phase of Alice Group's court plan, and it will definitely not be wrong, of course.

It depends on whether they Alice Group has the design strength, after all, being able to build does not mean that they will build, and being able to build only means that Alice Group has this strength.

As for the source channels of those technicians, technicians and ship engineers recruited from abroad, there are three channels: the first channel is to thank the former Soviet Union for its dedication to the cause of socialism, and all kinds of technical personnel in the shipbuilding industry obtained from the former Soviet republics over the years have played a very crucial role; The second channel is the people recruited in Ukraine some time ago, Ukraine's shipbuilding industry is very developed, so there are also a large number of employees in the senior shipbuilding industry, but thanks to the overall economic recession of Ukraine, many of these guys are still in the embarrassing situation of looking for food with a golden rice bowl.

For these guys.

Zhang Lan naturally can't let it go, although doing so will make the Ukrainian government feel more unhappy, but the Ukrainian government at this time doesn't dare to speak too loudly.

It is perfectly possible not to bird them; The third channel is all kinds of professionals who have mastered advanced shipbuilding technology recruited from Europe and the Americas, as well as South Korea and Japan in Asia, but unfortunately these guys are above the top one by one, thinking that it is condescending to work in Alice Group with their own technology, so these guys who master the concept of advanced shipbuilding, there are not many people who choose to work in Alice Group.

"Hmm" Jill nodded, his brows furrowed slightly, "The pre-job training work has ended, as long as there are orders, these people can work at any time, but the biggest problem now is that we can't get the right order, even if someone looks at our company's face and reluctantly places an order, it's just the kind of friendship sponsorship type, and the key now is to find a way to open the market in one fell swoop." ”

What Jill hasn't said is that the Alice shipyard project has not been very popular since the beginning, whether it is domestic or international, the fight for shipbuilding orders is extremely fierce, and European and American countries are worried that Alice Group will compete for orders after such a large shipyard project starts, and has always been quite resistant to the project of Alice Group; Japan and South Korea, two countries known for their shipbuilding industry, regard Alice Jizai's project as a thorn in their side, and if possible, they would rather choose to deal with the Alice Group's project as soon as possible! It would be fine if it only encountered difficulties and pressures abroad, but this is not all, the pressure encountered by Alice Shipyard in China is also different from that of the highly competitive foreign shipbuilding market.

The competition in the domestic shipbuilding currency market is not bad at all, it is often an order for a ship, and several shipyards will immediately come to compete for it, and now a guy who is competing with them for food suddenly appears.

Of course these guys quit.

Unlike the situation abroad, the large shipyards in China are all state-owned enterprises, and the backstage of these guys is all hard to death, so naturally they don't want to see the success of this project of Alice Group.

This is one of the reasons why Alice Group's shipbuilding project has been so difficult to get off the ground, if it weren't for these guys behind the scenes.

This project has already been launched, how can it be delayed for so long? In these shipbuilding enterprises at home and abroad secretly "striving."

After so long, after discovering that Alice Group was still tough on the shipyard project, these guys did not give up, of course they knew that the shipyard was built? This is not a problem, the key question is whether your shipyard can get the order, if you can't get the order, it means that the project that has spent a lot of money to build can only rust in the sea breeze and wind and rain.

Seeing that the shipyard of the Alice Group has the ability to build, these guys gritted their teeth in order to resist the Alice Group's snatching of the meat in their bowls, and resorted to a ruthless move: reduce the price! In fact, the profit of shipbuilding is not very high, and many shipyards are likely not to get many orders a year, and even a small number of orders are not enough to maintain their personnel expenses, that is, these shipyards are basically in a state of serious losses all year round.

Of course, it is not excluded that some shipyards rely on shipbuilding orders to make a lot of money, but that must ensure the continuity of their orders, and those orders are scheduled to shipyards a few years later, and the benefits are certainly good.

Since shipyards don't make money, why are people still rushing into this industry?

Could it be these mercenary capitalists?

When they entered this industry, they all changed and learned Lei Feng? This is certainly not possible.

The reason why they made this choice is because these shipyards, as long as they can get orders, they can get a large number of special financial subsidies from the state treasury every year, and these subsidies are enough for the owners of these shipyards to make very rich money when the shipyards lose money.

This is not only the case at home, but also in Europe and the United States, which are babbling all day long about the market economy, shipbuilding is an important industry related to the national strategic security of any country, even if it is a loss of money, they must maintain their own strategic industry.

So in the face of the Alice Group, the newly emerged wolf that grabbed food with them, think about the current situation of a group of competitors in the automobile industry who compete with the Alice Group, they are scared and hesitant, they admit that they will kill their own opponents in the mother's uterine armor, that is the safest, since this tenacious child has been born, in the eyes of these guys, this child can probably only be described with the word "shameless", if he can be killed in swaddling clothes, it is not bad, And for a newly-born shipyard, is there anything better than to oppress his market? As long as they grab market share from their hands, then this child is like a child without milk and mother. ,

You can only choose to starve to death, well, or you can choose to sell your child to yourself.

Originally, they also planned to unite several steel companies in the United Nations to boycott Alice Group, and were ready to persuade these steel mills not to supply Alice Group with steel that the modern shipbuilding industry could not lack anyway, but the helpless steel boss was indeed very good, and there was no bird these guys: in addition to Alice Group is already a shareholder of Qingdao Iron and Steel Group, the Qingdao Municipal Government naturally has its own plans, and they are very clear that a shipyard of such a scale, if it is operating normally, What kind of changes will it bring to Qingdao City, such a great political achievement, which.

Will politicians choose to let go? In addition, don't forget that Alice Group is also the largest passenger car manufacturer in the country.

If the Alice Group chooses not to order steel from them, they will cry.

But even so, the situation faced by the Alice shipyard project is also quite not optimistic, since this can be called a global shipbuilding enterprise joint price reduction, those companies with shipbuilding needs, almost all the orders have been handed over, the order is unbelievably cheap, the shipyard is even already operating at a loss The bosses of a shipyard are not afraid of losing money, anyway, they eat the country's financial subsidies, the more orders, The more subsidies they get from the government, the more they analyze this wave of shipbuilding price reduction that can be called sweeping the world and the orders obtained by major shipbuilding countries around the world, a professional media in the shipbuilding industry predicts that it is expected that in the next 3 years, the global shipbuilding market will at least shrink! The reason for the shrinkage of shipbuilding in the next three years is very simple: because the orders of major shipyards are scheduled for three years, and the new orders in these three years are just new market demand.

And in this shrinking market, Alice Group still has to compete with those small and medium-sized shipyards that are not full, and many "knowledgeable" people can't help but laugh in their hearts: Alice Group is unlucky enough this time.

"Well, this is indeed a big problem" Zhang Lan nodded, "But since they have signed the contract, then the only thing we can do is to make these guys regret it when they see our ship in the future, I heard that it seems that the shipbuilding companies across the country are secretly boycotting us?" We seem to have become the public enemy of the whole country, "It's not just the public enemy of the whole country, it's not an exaggeration to say that it's the public enemy of the whole world," Jill smiled wryly.

Zhang Lan's words directly poked the depression in Jill's heart, "I've never seen these guys so crazy, these guys are just like crazy now."

Back then, when we were engaged in automobile manufacturing.

They guys are not so crazy when we entered the domestic automobile manufacturing market, this market is basically still in a blank state, is a virgin land waiting for their own development, what did we lack government support, now for this shipyard project, we have fought with the above how many battles, the situation faced by Ran can be compared with the fierce competition in the shipbuilding market now? Zhang Lan thought in her heart.

"These guys weren't so crazy back then.

It's because there are too many car manufacturing companies in the world," Zhang Lan pursed her lips and didn't say anything in her heart.

"At least compared to shipbuilding enterprises.

There are just too many of these car manufacturing companies.

Well, what's new lately? "Not yet, we're trying to figure out how to transfer the contracts of those who signed the letters of intent to us, but it doesn't seem to work very well right now."

Jill has some of an appetite.

Hearing Zhang Lan ask this question, she sighed.

"It's normal".

Zhang Lan nodded.

"Since we have already signed a letter of intent and asked them to contract with us, a shipyard that has basically no reputation, it is basically impossible."

"That's because these guys don't know Tarzan.

Jill said childishly.

"Those guys didn't just give orders to somebody else.

They don't believe in our technology yet, and these blind people don't look at who our designers are! That's right, Zhang Lan nodded, in order to be a hit, the shipyard's ship design work was all done by Xiao Chenxi, Alice, Brother Zhu and Brother Tian, who were idle all day long, it is no exaggeration to say that under the premise of the same price, the ship built by Alice Group must be the best, the only problem is that no one believes in the technology of Alice Shipyard.

"Alas," Jill sighed, "now we have digested a batch of orders internally, but this is only a temporary measure, and after the entire shipyard is built in the future, we will not have to digest all the ships built internally."

Hmph, if you really can't.

Let's build an old 10,000-ton aircraft carrier to try our technology first, and see if these guys will give us orders Zhang Lan knows, in order to prove to others, Alice Group itself has placed a batch of orders for itself about to look at the ship, although it is not big, but with this example in front of it, it can still attract a few people: Since Alice Group itself is so confident in the ships it uses, then their technology should not be as bad as other shipyards say, right? The other shipyards behind the Alice Group did not say anything bad about Alice Shipyard.

Especially in front of these guys who take the money to place orders, if they are not worried that the bragging is too big and may be accidentally blown by themselves, they can even swear that the super large gantry crane in Alice Shipyard is paper-tied.

A two-stage breeze blows over, and the gantry crane may be blown away; The dock was built up of cardboard.

The water will collapse as soon as it is soaked.

If it is really possible to build an old 10,000-ton aircraft carrier to show its technical strength, it is a single aircraft carrier, rather than considering a series of problems such as carrier-based aircraft.

It's not a question of the aircraft carrier formation, but for Alice Shipyard, the only question is whether Zhang Lan is willing to engage in such a thing.

The problem is, of course, that is not possible.

Not to mention the problem that there is no dock for the construction of warships of this class, that is, after the construction is completed, it is also a big problem who to sell it to, and with the current ambiguous attitude towards aircraft carriers in China, expect them to buy them? This will probably drag on for at least a few years; As for takeaways? This is even more impossible, if it can be sold, the Japanese will naturally be the first to rush to buy it, but is it possible to sell it to them? However, for the current problems, Zhang Lan is very open to this matter, "You can't say that, the money is someone else's, and the price of buying a ship is not cheap, of course they have to choose the shipyard they believe in to place an order, if it is replaced by us, we will also choose to do this, right?" In the future, when the ships we use ourselves have proven to be reliable over time, they will still choose to place orders with us. ”,

After a pause, Zhang Lan added, "And these shipyards will not keep this low price down, I believe that after they see that they can't stop us, they will choose to raise the price to the original level, after all, they just want to snipe us, in the case of not being able to snipe us, they will not choose to wait for death: it is just a short-term attack on their competitors, but no country will allow them to always engage in this kind of behavior of making the country's finances cheap for a long time." ”

Jill nodded, she knew what Zhang Lan meant by any ship building contract.

There will be such a rule: during the construction of the ship, the shipyard can be based on the price of various raw materials in the market to the extent of the fluctuation, the overall price of the shipbuilding, on the basis of the original price to a certain extent, this is also a common practice in all large machinery manufacturing industry, after all, you can't let people lose money to do business.

This is a must, after all, shipbuilding involves many industries, Zhuo Dan is just the price of steel is enough to kill: if the international iron ore price rises, then the overall price of their ships will naturally rise, the price of iron ore will rise by seven percent, then the overall price of the ship will rise by at least ten percent, which is determined by the inevitable law of the market, they cannot not increase the price.

In recent years, because of the driving role of China's economic development, the price of international iron ore has been rising every year.

If the order placed this year starts two years later, and the price of steel has already increased by 50 percent, how can the shipyard still build at the price at which the contract was signed? The bosses of these shipyards are not fools and Lei Feng.

Naturally, Jill will not be unaware of this truth.

Having said that, Zhang Lan's words can be heard.

There was still not much smile on Jill's face, and the little girl was a little bored stirring the porridge in front of her.

"That's right, but how to overcome the hurdle in front of you is the most important thing, and only by solving the problem in front of you is solved.

If this problem is not solved, no matter how beautiful the future prospects, for Alice's shipyard, it will be nothing more than a mansion in the air and a mirage.

And Alice Jiran's prestige built up over the years will also be greatly damaged because of this incident.

Now, I don't know how many people are waiting to see the jokes of the Alice Group.

How to solve this problem? Zhang Lan frowned and thought hard, obviously, it is not possible to avoid this problem, avoiding problems is not the Alice Group's style of doing things, and it will also be ridiculed that Alice Group is just a soft egg who bullies the soft and is afraid of the hard! It is not possible to ask the government for help, although given the strength of the Alice Group, they cannot do anything too biased.

But if you count on the government to pull in the Alice Group, it's a bit of a pipe dream, don't even think about it.

So, how do you do that? How to solve the current problems encountered in the Alice Shipyard project, Zhang Lan does not have an overall clear idea, but it is not that there is no good news, Alice Shipyard still has some good news, for example, now, those old Maozi experts who were brought by Zhang Lan and Alice from the former Soviet Union and settled in China have brought Zhang Lan a good news: they have successfully come up with a set of waterjet propulsion system.

Waterjet propulsion technology, which can be very clearly understood in the literal sense, is a type of ship propulsion that uses the reaction force of the jet of water to the back of the ship to make the ship forward.

The propulsion system appears for a very long time when spraying water, much longer than the propeller propulsion system.

The first waterjet propulsion unit was born in the Year of the Earthworm! Since then, the water jet propulsion system has gone through a history of more than 0 years.

No matter what kind of waterjet propulsion device, its basic composition is roughly the same, including the water absorption device, the water conveying device and the water spray device, which are connected and installed on the bottom surface of the ship's hull in turn.

The water suction device is used to suck water into the propulsion device as a power source; The water conveyance device is to pressurize the inhaled water to increase its energy; The water spray device is to spray the pressurized water flow at high speed, thereby propelling the hull of the ship forward.

In terms of ship propulsion system technology, compared with the propeller propulsion method, the waterjet propulsion system can be called the jet engine and the piston propeller engine.

At present, the international research on waterjet propulsion systems is probably only equivalent to the research on jet engines in the mid-to-early 40s of the twentieth century, or relatively late.

Compared with the theoretical and applied development of the traditional propulsion mode of propeller and shaft system, the progress of water jet propulsion technology is relatively slow, and it is far from being comparable to the traditional propulsion mode of propeller and shaft system.

But after entering the seventies of the twentieth century.

Waterjet propulsion systems have been developed considerably.

With the wide application of computer technology.

Waterjet propulsion technology has now developed to a certain extent, although it can not be compared with the traditional propeller and shaft propulsion methods, but it has been applied to a large extent.