Passive sonar: Passive sonar technology refers to the passive reception of radiated noise generated by underwater targets such as ships and signals emitted by underwater acoustic equipment to determine the orientation and distance of the target. It evolved from a simple hydrophone, which listens to the noise emitted by the target, determines the location and certain characteristics of the target, and is especially suitable for occasions where it cannot make a sound to expose itself and wants to detect the activities of enemy ships.

Duke definitely wanted to make active sonar, the problem was that he kept instilling black technology in the scientists of Ironforge and Stormwind. If the industrial level of this era can't be done, it can't be done.

Like a submarine, the sealing technology of this era is not up to par at all, the kind of marine steel plate made of willow nails and welding, it is okay on the water, and when it reaches a place with high underwater pressure, it plays with fountains everywhere. That experiment almost cost two senior scientists and a bunch of engineers.

The only way to do this is to make a coastal sonar in passive sonar. Of course, in order to make the positioning clearer, he had a sound wave propagator laid 500 meters away from the water's edge and not too deep in the water.

Duke took control of Mark Dooku, smiling as he twisted the button on the sonar device.

In the loudspeaker, you can hear a very regular and rhythmic "drip...... Drip...... The sound of dripping ......".

Duke continued: "This is the sound wave that we actively emit, and we can roughly determine the location and number of enemies by listening to the clutter in its echo for clutter......"

Before Duke could finish speaking, suddenly a fierce voice came from the loudspeaker: "Knock knock, knock!"

Duke was stunned when he heard this.

A bunch of dwarves with particularly big brains next to him suddenly made all kinds of lofty comments:

"It sounds so realistic! It feels like there's something beating in this thing. Brian spoke first.

"Yes, could it be the footsteps of the devil walking under the water?" said Comrade Kudran.

"Mmmm, most of the demons can't swim, they do walk underwater. But the voice, lest it be too sharp and clear. Shouldn't the sound under the water be a little more muffled?" Brian retorted.

Only Duke's face was blue.

As a veteran traverser who has watched classic submarine battle movies such as U-571, of course he knows that this has nothing to do with sonar gods.

A scan of the system revealed that he regarded him as a treasure, and what was in the sonar system guarded by heavy guards......

God is a bunch of little iguanas.

Many Alliance soldiers must have seen these annoying goblins on the continent of Draenor.

Although these little iguanas who are only the size of a palm do not have a strong attack, nor do they have a strong body, they look easy to bully, but they always live in groups, which will remind you of a nostalgic species on the continent of Azeroth, yes, it's a fish-man, woo wow wow wow -

But these little goblins don't have the annoying realm of the fish-people, and the first time I see the iguanamen, I still feel a little scary and terrifying, a bit like the head of a frog, the sharp teeth, the small eyes, the rough four-fingered claws, and the obscene body. However, when you see a lot of them on the continent of Draenor and slowly get used to them, you realize that they are still a little cute...... It's weird!

Duke's fire is big, sonar is his baby bump, and when he wasn't sure that Vasqi was Serega, sonar was the ultimate killer for him to clean up Naga.

Who would dare to put a bunch of little iguanas in his brother's latest invention??

There is only one answer -

"I-Ry-Er-" Duke's roar resounded through the waterfront.

The hoof, who was standing not far away, heard Duke's roar, and he didn't know that he was going to go, and his whole body stiffened as if he had been electrocuted for a full second, and then he shrank his head, and he actually wanted to turn around and run away in the pile of people.

The problem is that this thing's brain is also messed up, I didn't realize that there were dwarves all around, and she was taller than the dwarfs but more than a head!

This kind of stupidity that wants to cover up makes Duke even more angry, and it flashes to the past at that time.

"Ahh

Run!?

Also run you paralyzed!

Duke was quick with his eyes, and with one hand he grabbed the tail of his hoof, which was seriously behind him.

"Huh-" The hooves stiffened again as if they had been electrocuted.

Duke hugged the waist of the hoof and carried her directly like a rice bag: "Come on, take the sonar system apart." Pack up the little iguana inside first. I'll teach this fool a lesson!"

Hoof screamed, the Carabo's apprentice's education in light made her dare not lie, "No, no, no—I know wrong! I saw that your big iron box was empty, and thought it was useless. It just so happened that Selin guy me off last time, and I wanted to give him some little iguanas, and I really didn't mean to destroy your important new gear. ”

Duke was even more angry: "Your special spoof ruined the latest invention of Marcus Future Technology Co., Ltd.! It's useless to beg for mercy, this time I have to give you an unforgettable lesson." ”

Duke strode into a no-one utility room on the shore with his hooves on his shoulder, sat down directly, put his knees against his lower abdomen, grabbed her by the tail, and spanked her hard.

"Ahh

Next to the utility room, everyone is a black line.

What's the deal with this pair?

Even the Draenei garrison didn't know what to say. They have also seen the high technology of the Alliance, for the Draenei universe technology, the Alliance's technology is very shallow, the problem is that the Draenei themselves have lost a lot of technology because of the 25,000 years of escape.

Because Delaneny scientists have lost their lives in various accidents, most of the knowledge and technology have been disconnected. Many of the machines are unused, so their most reliable weapons are Warhammer and Light.

In this case, my own contact person ruined someone's high-tech device, and being spanked is already a small punishment. According to the military law of the Alliance, this Mark Dooku is going to cut Iriel, and they don't know how to intercede.

Five minutes passed, and Duke came out in a rage, followed by a hoof covering a red, swollen ass.

"Hmph, do you dare to mess around?" Du Mouke asked angrily.

"Woo woo!" the hoof just cried.

"I'm asking you!"

"Don't dare. "The aggrieved look of the hoof, like a little daughter-in-law who has just been molested by hooligans.

Duke didn't know it at this moment, because he beat the hoof, and even made the hoof cover his ass as soon as he saw him later......

Perhaps in the eyes of the hoof, this Mark Dooku already has two big words 'hooligan' chiseled on his forehead, which cannot be washed off for the rest of his life. 2210