Yu Sheng was also a little helpless, it was actually for him to come here to study what kind of gun it was, and besides, wouldn't this gun be made directly according to the introduction on the drawings, where do you need to come by yourself.

But the rest of my life suddenly thought that I didn't seem to understand this gun very well...... This drawing is all given to me by the system, and I know how this gun was made.

Thinking of this, Yu Sheng's face was a little unnatural.

"System, system, haven't I swiped out a book on gun manufacturing in the mall?" Yu Sheng was immersed in the system and couldn't wait to ask.

"Yes." The system replied, "There are 50 books that the host can buy, does the host buy them?" ”

"50 copies?"

When Yu Sheng heard this, he was slightly stunned, and then his expression was overjoyed, and he couldn't wait to ask: "How much military merit is worth?" ”

"50 points."

"50 points?"

Yu Sheng was a little surprised and asked, "Why is it so cheap all of a sudden, this doesn't suit your style?" ”

Indeed, in the past, when I bought something, it was expensive to death, either dozens or hundreds, but I didn't expect that this would be so cheap to buy fifty books.

"It depends." The system said slowly: "Please ask the host if you want to buy it." ”

Yu Sheng was suspicious for a while, why did he suddenly feel that this system was priced at will? You can set as much as you want? Although there is no direct evidence, I still feel this way for the rest of my life.

"Buy, buy now." The rest of his life is immediately said.

"Didi, the host is buying fifty books."

"Didi, consume fifty military merit points of the host, and the purchase is successful."

"Didi, the host still has 570 military merit points, may I ask the host if you want to continue to buy goods."

"570 points?"

When Yu Sheng heard this, he couldn't help but gasp, and Yu Sheng asked with some shock: "System, why did my military merit suddenly increase so much?" ”

"The host killed several people on Alcatraz Island, thus gaining 420 military merit points, plus the host's previous 200 points, so the host has 620 military merit points, and just now the host has 50 points spent on goods, and the host still has 570 points left."

"Damn, am I so rich?"

Yu Sheng's expression was overjoyed, he almost forgot that he had just returned from Alcatraz Island, so there must be a large amount of military merit value, not to mention, those people in Alcatraz Island are not good people, and it is already very terrifying to be able to get 420 points.

It's really a sudden pie drop.

There was a little excitement for the rest of my life.

"System, immediately merge these books."

As Yu Sheng's words fell, there was a lot of knowledge in Yu Sheng's mind, and this knowledge shocked Yu Sheng, and for a while, Yu Sheng had a feeling of dizziness.

This is the benefit of buying books in the system, as long as you buy them, these books seem to be engraved in the mind for the rest of your life, no matter what time it is, you will never forget what is in your head for the rest of your life.

For a while, the rest of my life also had a great understanding of the structure of guns, and also understood some new materials and some construction principles.

At the same time, this also made Yu Sheng understand how to give full play to the maximum power of a gun, which made Yu Sheng slightly surprised, obviously he didn't expect it to be like this.

At this moment, Yu Sheng heard a call sound, which made Yu Sheng slightly stunned, Yu Sheng couldn't help but wake up enough from the system, but saw Fan Tianlei calling him.

"For the rest of your life, what are you stunned about?" Fan Tianlei asked.

"It's fine." Yu Sheng smiled and said, "Aren't you very curious about the weapons here, I didn't expect there to be so many weapons here." ”

When Zhang Haiguo heard this, he smiled and said, "Here, there are all kinds of weapons, and almost all the weapons that can appear in our country are here." ”

"Can't you do more?"

The rest of my life can't help but be a little shocked, the weapons that can appear are all here, which means that this laboratory is very large...... This made Yu Sheng secretly surprised.

"Oh no......"

At this moment, a rapid voice resounded, and then, from outside, a person quickly walked in, this person was wearing a white coat, long hair, but the long hair was tied, this girl had delicate facial features, looked beautiful, and was a beautiful doctor alive.

This girl's name is Li Xueqi, she is very beautiful, and this girl is not a simple person, because she is a double doctor, and this year's grade is only twenty-six or seventeen years old, and it is quite powerful to be able to reach this level at the age of twenty-six or seven.

In these years, there are not many double doctors, and this Li Xueqi is still a famous graduate, so as soon as Li Xueqi returned to China, he was transferred to work here.

"What's wrong?" When Zhang Haiguo heard this, he frowned and said, "Xueqi, is there a problem with our new materials?" ”

"It's really a big problem."

Li Xueqi's expression became solemn, and she said: "Professor Zhang, in terms of high temperature resistance, our new material is a full five hundred degrees behind, and if this material is applied to a new type of weapon, it will be very dangerous." ”

"We have to find a material that can withstand high temperatures, and we have to fuse with this material, as long as we can reach a predetermined temperature, but ...... I found a lot of materials and fused a lot of materials, but I couldn't do it, although some can increase the melting point, but ...... Once the melting point increases, the hardness of the material decreases. ”

Li Xueqi's face was a little unnatural, and she was also a little anxious.

"Oh."

When Zhang Haiguo heard this, his brows tightened, they have been studying this project for a long time, and now they have made a huge breakthrough, if there is such a problem that traps them, I am afraid they will have to study it for a long time.

"Let's go and have a look."

Zhang Haiguo didn't talk nonsense, but said directly: "Xiao Zhang, you guys should come along, just familiarize yourself with the environment of the laboratory." ”

"Okay."

There was no nonsense for the rest of my life.

At this time, Li Xueqi glanced at Yu Sheng in surprise, Yu Sheng was wearing a camouflage uniform, and he looked like a soldier, but what was a soldier doing here? After all, this is a laboratory, and generally speaking, other people are forbidden to enter, even if they are soldiers for the rest of their lives, they should not be allowed in.

Listening to Zhang Haiguo's meaning, familiar with the laboratory, is this person going to live in the laboratory all year round in the future? This made Li Xueqi a little surprised.

However, Li Xueqi didn't think much about it, it was not up to him to decide who was in the laboratory.

Immediately, everyone quickly rushed towards the laboratory.