"When we help you, we help ourselves, and you have already paid it back. ()" Bai Yi said.

"How we found you." Tang Sancheng said.

Yu suddenly flew in front of Tang Sancheng, smelled the smell of Tang Sancheng's body, her nose twitched very much, and firmly remembered the smell of Tang Sancheng's body: "I will go to you." “

"Nope." Fu Yu said, "We came to you and gave me a piece of your hair." “

Fu Yu is going to use the Searching Gu, Yu pinned his hopes on them, met their requirements, immediately ripped off his hair and gave them all, and then went out of the hatch, I don't know when it started, there were dozens of Yaksha around them, left and right, as soon as Yu went out, they all followed her into the cabin, it seemed that she was going to take away the corpses of his own people.

Bai Yi and they didn't stay any longer, started the submarine and moved up quickly, away from the wreck, Na Yu suddenly surfaced in the cabin, her long hair spread in the water waves, she looked up, her expression was very serious, Fu Yu sighed: "There should be more than one group of Yaksha at the bottom of the sea, mermaids are also creatures under the sea." “

The little fox poked his head out, there was a lot more in his eyes, and Fu Yu said, "Strange, can you understand what we are saying?" “

"The nine-tailed fox is spiritual. The Seven Evils said, "Maybe it just can't speak." “

Bai Yi began to talk to Xiao Shan, Xiao Shan's voice came clearly from the walkie-talkie, and his voice seemed to be hurried and uneasy: "Where did you run to?" “

"We'll talk about it when we come up." Bai Yi said, "You guys are fine, right? “

"It's fine." Xiaoshan said: "But I'm so worried that I'm going to die, is Brother Sancheng okay?" “

The energy of the submarine is very sufficient, back to the rock, the four of them and a fox out of the boat, the night outside surprised them, tossed down repeatedly, it turned out that it was already ushered in the second night, the three of them were inexplicably excited, rushed over, checked them up and down, after confirming, Xiaoshan suddenly cried: "Scared me to death, next time I must go down with you, don't let me stay on it again!" “

Tang Sancheng's nose was sour, and he hugged Xiaoshan in his arms: "Silly boy, with our ability, how can there be anything, it's you who think too much." （）“

"The brother of the step family is so sure, but in the end, he is not lost." Shen Bing poured his anger on the Bu family brothers.

"No, these brothers are remarkable." Bai Yi said: "In the whirlpool so violently underwater, it is also safe and sound. “

"What the hell happened to you?" Cong Yang clenched his fists, the moment Xiaoshan cried, he almost cried, he only tried his best to control his emotions, the man didn't flick when he had tears, how could he cry, but now his hand hurts a little......

Tang Sancheng's stomach rumbled first: "I'm so hungry." “

Back in the tent, everyone talked while eating, the little fox was also hungry enough, drank the milk powder, and now held a piece of bread and gnawed there, and then fell asleep with his belly over, Fu Yu covered it with a blanket, and then began to tell everything underwater, and heard that he had really found the Queen of the Yakshas, Shen Bing was excited: "Great, but it's really pitiful, hiding in Tibet, and being played by the Golden Family once." “

"So this time we have to be more serious and completely break this idea of Hebo. Bai Yi said: "I'm afraid this matter still needs the help of the Bu Group, that place has been made public before, and now it is suddenly filled in, I am afraid it will also attract side attention, it will inevitably attract the attention of Hebo, it is better to let the Bu Group block it in the name of the project, so that there is one more building on it, how about it?" “

What a bold idea, but everyone thinks it is very reasonable, everyone talked until dawn, Xiaoshan and the Bu brothers got in touch, these things are still transported back by the Bu Group, they flew back directly to find the Bu brothers, Bu Yiban and Bu Yifan were very curious about their trip to the sea, Bai Yi refused to say more, only told the discovery of the Yuan Dynasty shipwreck.

"Ah, that's great." Bu Yiban said: "Didn't my father have a friend who did shipwreck salvage? Now the two of us have something to do! “

Bai Yi didn't expect that the brothers were also very interested in the salvage of the wreck, and their heads couldn't help but get bigger, "It turns out that you are also interested in the salvage of the wreck." “

"Of course, shipwreck salvage is closely related to physics." As soon as the brothers mentioned the salvage of the wreck, the conversation opened.

Bu Yifan said: "Now the commonly used is the buoyancy salvage method and the pontoon salvage method, the buoyancy salvage method is to restore the buoyancy of the wreck and make the wreck float to the surface. In ancient China, the monk Huaibing used this method to salvage the shipwreck. The specific process of buoyancy salvage method: first put the sediment on the boat, and then bolt one end of the rope to the boat, and the other end is tied to the boat to be salvaged, throw the sediment out of the boat, the weight of the ship is reduced, and the sunken ship floats out of the water due to the buoyancy of the water. In ancient China, the monk Huaibing used this method to salvage the shipwreck. Now there are many ways to salvage the wreck, and the commonly used salvage method is the pontoon salvage method, that is, after a number of pontoons are inflated underwater, the wreck will be floated out of the water by buoyancy. Because the pontoon salvage method is used to salvage the wreck, the water buoyancy generated is large and reliable, and the construction is convenient and safe, so the pontoon salvage method is often used to salvage the wreck. “

"Another way is to cover the shipwreck in a closed container to isolate it from the outside world, and then add salt to the area so that the density of this part of the sea water decreases, and the ship will naturally float. The other is to put sediment on the boat first, the more the better, of course, you can't let the ship sink, and then tie one end of the rope to the boat, and the other end of the boat to be salvaged, throw the sediment out of the boat, the weight of the ship is reduced, and the sunken ship is naturally fished up due to the buoyancy of the water! Not to be outdone, Bu Yiban immediately expressed his opinion.

"The famous American Republic, formerly known as the USS Tennessee, was equipped with a high-powered steam engine capable of transporting 100 passengers and 5,000 barrels of cargo at a time. It was the flagship of the Northern Fleet for a time during the American Civil War and played a crucial role in the battle on the Mississippi River. After the war, the U.S. government decided to use the Republic to ship gold coins to the south, hoping to stabilize prices and promote the post-war reconstruction of the south. On October 25, 1865, the USS Republic sank in the waters off Savannah, Georgia, en route from New York to New Orleans due to a severe storm. Although more than 60 passengers on board were able to escape, 20,000 gold coins with a face value of $20 sank to the bottom of the Atlantic Ocean along with the ship's hull. "The more I talked, the more excited I became.

Although they didn't know much about this aspect, Bai Yi and the others gradually listened very attentively, the shipwreck on the bottom of the sea was indeed a great untapped wealth.

Bu Yifan echoed: "The company responsible for salvaging the Republic is a well-known salvage company in the United States, equipped with a 75-meter-long Odyssey Explorer marine exploration and support ship. The ship is equipped with a 7-ton, 205-horsepower remote-controlled submarine operation vehicle, which can dive into the deep sea of 2,500 meters, and can freely take pictures, videos and inspect seabed targets. It can be said that it is the most powerful salvage equipment in the world, and the scale of such salvage is so amazing, I feel so excited just thinking about it. “

Bai Yi shook his head slightly, many salvage companies are salvaging shipwrecks for commercial purposes, which leads to the consequences of "mercenary", the hull is often damaged, these ancient ships are also a cultural wealth, but because of salvage damage, it really makes people a little puzzled, is salvage the best result for the shipwreck?

When it comes to the brothers' professions, the brothers popularized a lot of relevant knowledge, until they saw everyone's interest, and finally closed their mouths, taking advantage of this time, Bai Yi said: "Actually, we have one more thing that we need your help with." “

(Education 123 Literature Network)