readx;

There are no rare earths in the inner bay, that is, in Mutsu Bay, I remember watching TV in my previous life, I reported that there are a lot of mineral resources in two inland bends in the northern strait that have not been frozen for many years. Pen & Fun & Pavilion www.biquge.info

The submarine searched all the way to the vicinity of Yakumo Town, and found that these coastal shores were very straight, and traces of artificial land reclamation could be seen. The foundations from the bottom of the sea to the shore are cinders and construction waste.

The submarine continued to drive forward and released a small fish-shaped submarine to explore, there was no cinder at the bottom of some seabeds but a large piece of coal, Zhang Tao also wondered that the coal bubble was taken out in the sea, whether it was steelmaking or coking, it was not good, and he understood when he saw the seabed foundation here.

This is the use of coal as a material for land reclamation, when the price of coal is cheap, it is indeed about the same price as soil and other materials, the price of digging stones or soil in the local area is relatively expensive, and the labor cost is also expensive, and the ship to the dock of China and Russia can be directly loaded and pulled back the coal, and it is not an empty ship when it comes to loading coal, and some goods can be pulled back to earn the freight.

The bottom layer of coal is squeezed out by the continuous pouring of cinders and construction waste, and over time, the gaps between the coals will shrink under the weight of the upper soil and rock, and more seawater will be squeezed out. When there is a shortage of coal, you can get coal by digging up the soil above.

After spending a day in the inner bay, the submarine returned to the Tsugaru Strait at night, and crossed the Tsugaru Strait to Mutsu Bay after midnight. Mutsu Bay is divided into two parts, Aomori Bay and Mutsu Bay.

Zhang Tao remotely controlled the submarine to search in Aomori Bay until midnight and found nothing, and in the middle of the night, several ships passed by the sea, it seems that this is a transit route. In the second half of the night, when I arrived at Mutsu Bay, there were more ships on the sea than in Aomori Bay, and the ships seen from the reflected images received by the metal detectors were all large tonnage, and when I clicked on the map on the computer, I saw that there were several bases of the Maritime Self-Defense Force, the Nuclear Power Research Institute, and many ranches nearby.

A small fish-shaped submarine in the coastal waters found nothing, and there was a surfer blocking the sea surface in a sea area close to the Maritime Self-Defense Force, and there were some mine-like things underwater.

Looking at this unusual sea area and a large number of ships, it is certain that rare earths are in this sea area, but I don't know where they are, and rare earths are more valuable and will definitely not be released as casually as coal.

Remotely controlled the submarine in the sea, turned on the metal detector, and scanned the surrounding sea area, at 40 degrees 59 minutes north latitude and east longitude, some ships were cruising back and forth regularly, which attracted Zhang Tao's attention.

Remotely controlled the two submarines towards the sea area, and as the target approached the depth of the seabed, and when he reached the target, he looked at the pressure gauge of the submarine and showed that it was a thousand meters of seawater, and stopped the submarine.

The small submarine disguised as a turtle was released and let it come to a place thirty meters below the surface of the sea to stop, and then remotely controlled two submarines to dive, after the submarine reached the bottom of the sea, the pressure gauge showed that the pressure of the sea water was close to a thousand meters, and the bottom of the sea was relatively flat, and after looking for a while, it found a trench, opened the resonance frequency of the stone and opened up a cave to hide in.

After moving forward for 200 meters with a small submarine disguised as a leatherback turtle, the remote control of the small submarine was stopped, and then the robot in the remote control of the submarine lowered the fish-shaped small submarine into the sea, and switched the remote control to remotely control the fish-shaped small submarine to swim towards the target.

The fish-shaped small submarine moved relatively slowly because it completely imitated the swimming pattern of a fish, and reached the set target in half an hour. After arriving at the place, Zhang Tao saw from the video transmitted by the fish-shaped small submarine that the seabed terrain in front of him was like a hill under the sea.

After operating it to swim around the hill, I found that the top of the hill was relatively flat, and there were cameras in several places on the hill.

The fuel tank signal of the fish-shaped small submarine sent back a signal that there was not much diesel fuel, Zhang Tao remotely controlled him to return to the submarine, filled the submarine with diesel fuel and then remotely controlled it to swim to the hill.

There are fewer fish around the hill, but not nothing, so the appearance of the fish-shaped small submarine does not seem abrupt, find a place that the camera can't see, first arch a few times with the part of the fish head, no arch, the soil is still very strong, turn the fish body, shovel the soil with the tail of aluminum alloy to the soil, dig up some soil, the soil is more sticky, dig for a while and turn the fish body to look at the camera of the fish's eye part, there is an infrared device in the camera to see things in the low light, Then continue to dig with the aluminum alloy of the fish's tail.

When digging half a meter deep, I saw a layer of plastic sheeting inside, turned the fish body and pointed the head against the plastic sheet, used the stainless steel chrome teeth inside the fish head to bite off the plastic sheeting and the contents inside, and then closed the fish mouth.

After pulling some soil on both sides of the excavated place, the fish-shaped small submarine was returned to the submarine by remote control, and the remote control robot opened the entrance and exit of the submarine to take the fish-shaped small submarine back into the submarine, and after taking out the plastic sheeting and things in the fish's mouth, put it in a metal box, Zhang Tao saw that the soil on the plastic sheet looked viscous and oily, the plastic sheet was very thick, almost five millimeters, and the soil inside the plastic sheet was pink sand, which could be determined to be rare earth.

The rare earth particles still look dry, and it seems that the preservation technology is not bad, when Zhang Tao just operated a small fish-shaped submarine to circle the hill where the rare earth is hidden, he did not see any fish settling on the hill under the sea, and there were no plants growing on the hill. The oil contained in the soil on the plastic sheeting is supposed to be an additive, and it may be something used to repel fish and keep plants from growing.

This stuff is also sticky, and when the submarine comes back, it should be rewarding to study it, and cracking it and smearing it on some seabed areas can prevent fish from burrowing and other behaviors.

After coming to the surface of the sea with a remote submarine, he retracted the small submarine disguised as a leatherback turtle and drove towards the Tsugaru Strait, and when it was almost dawn, he reached the outer edge of the Tsugaru Strait, and opened a cave with the vibration frequency of the stone on the edge of the stone wall of a trench at the bottom of the sea, and then sent out the resonance frequency of the stone to collapse the hole.

After waiting for thirteen hours, after detecting that there were no metal objects and large fish at the entrance of the cave, the rocks at the entrance of the cave were shaken into powder at the maximum oscillation frequency and opened out of the cave, and then drove towards the waters of the North Pacific Ocean. To be continued.