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On the way back, the three submarines also added some diesel, and half a month later, the five submarines returned to Icelandic waters, Zhang Tao remotely controlled one of the submarines with rare earth specimens to drive back to the dock of the Icelandic seaside villa, and the other four drove back to the small island base in the Arctic Ocean. Pen & Fun & Pavilion www.biquge.info

The rare earth specimens were taken out and placed in a box, and the submarine was overhauled. The next day, he remotely controlled the robot as small as the base to overhaul all four submarines.

In the afternoon, the submarine was overhauled, Zhang Tao came to the factory laboratory to study the rare earth specimen, put on gloves and took it out of the box with tweezers, and the soil on both sides of the plastic stored for more than ten days was somewhat dry.

Put the soil on both sides into two glassware, and use instruments and equipment to analyze and test the pink granular soil suspected of rare earths, and more than ten minutes have passed, combined with the information introduced in the video, it can be determined that it is rare earth.

Then the soil containing oil equipment and instruments to do a test, the soil is composed of clay and sand, of which the proportion of clay is very large, and the sandy soil has oil-absorbing clay waterproofness is very good. After the chemical reaction of some acid and alkali test solutions, the oil obtained two kinds of oil and some white pungent powder, Zhang Tao looked up the text and video materials on the computer and really found some information, oil is an insoluble in water and a high viscosity of oil, white powder is a small toxic chemical product, for marine animals is a very pungent smell.

As for the reason why the plants do not grow on the hills, the proportion of oil contained in the soil is relatively large, which is not suitable for the growth of plants. Zhang Tao typed their composition into a folder on his computer, which was later used to smear some of the gold mines on the seabed to prevent plant growth and animal proximity.

This kind of plastic cloth is a kind of coarse plastic cloth that is more common in the market, Zhang Tao went to the truck market to buy half of the plastic sheeting, and then called Robert to buy some oil, this time to buy more uncommon goods, Robert's company does not have it, it will take a few days to deliver.

Zhang Tao felt that it was not very convenient, wondering whether he was opening a company that sold materials, but there was no suitable candidate, although the current company management model was very advanced, it still had to rely on human management.

A week later, Zhang Tao bought the goods were transported to the wharf, Zhang Tao mixed several kinds of oil and white powder, checked it with equipment and the same as the oil on the plastic sheet, but I don't know what the effect is, Zhang Tao stirred a hundred catties of oil and powder, half a ton of clay and hundreds of catties of sand also stirred, poured the oil into it and stirred well, the clay and sand absorbed the oil, and waited for half an hour to mix the oil and soil became harder, wrapped with plastic sheeting.

Then the oil wrapped in plastic sheeting and some small kegs of diesel and the wearable parts of the machinery in the gold mine were put onto the truck and pulled to the dock, and then put into the submarine by crane. After returning to the factory, I washed the ground with seawater, washed the ground with seawater, washed the ground with hot water, cleaned the ground, took off my work clothes, put it in the washing machine to clean, and came to the computer room to remotely control the submarine to drive to the submarine gold mine.

A few hours later, the submarine arrived at the place, and the robot in the remote control submarine put two small submarines disguised as ice floes into the sea, and after seeing the two small submarines floating to the sea and parked, the remote control submarine dived.

After arriving at the entrance of the gold mine, the remote control robot installed buckets and other fixtures on the manipulators of several small submarines, and then opened the submarine access compartment to release several small submarines, and cleaned up the plants near the entrance of the gold mine.

Nearby seaweed and other plants pushed onto the sea sand next to it, and the remote control robot released the oil and soil wrapped in plastic sheeting, which was relatively tight under the pressure of the seabed, and controlled a small submarine to uncover the plastic sheet, and then remotely controlled several small submarines to evenly cover the oil and soil on the rocks that pushed away the plants and sand, and then remotely controlled several small submarines to shovel some sand with a bucket to cover the oil and soil.

The sand is sprinkled about two centimeters later, too thick to eliminate plants, too thin to be easily seen by the occasional passing submarine, although this is unlikely, the waters of the Arctic Ocean often freeze, and the sand on the bottom of the sea is not all grown with plants, and it is not very strange that there are no plants growing on this seabed.

In the submarine gold mine, there is gold mined in the spare time a few days ago, and after docking the entrance and exit of the submarine and the mouth of the submarine space, the remote control robot enters the gold mine to transport the gold to the submarine, and after transporting the gold, put the diesel fuel in the submarine and some parts that are easy to wear and tear in the gold mine into a storage room in the gold mine.

After remotely controlling a small submarine to dig up some sea sand with a bucket to cover the entrance of the submarine gold mining space, he took all the small submarines back into the submarine, and then remotely controlled the submarine to float to thirty places below the sea surface, and the two small submarines disguised as ice floes were also withdrawn into the submarine, and then set off in the direction of the island base.

After arriving at the entrance of the stone door at the base of the island, some fish in the sea were scared away, looking at the surrounding caves, there were still some shellfish and conch attached to the stone wall, and the stone door on the bottom of the sea was opened and the submarine entered, and then the stone door was closed, and the stone door was not flat, and the original natural traces were retained, and it could not be seen that it was a stone door, after the submarine entered the forging room on the island, the remote control robot took the gold to the forging room, and then remotely controlled the submarine to drive out of the island base.

While remotely controlling the submarine to drive in the direction of the dock, while remotely controlling the robot to put the golden sand into the forging pool to melt it into gold bars, Robot No. 1 is also at the island base, and when the gold bars are saved enough, you can remotely control Robot No. 1 to sit on the submarine to sell gold bars.

Zhang Tao has not been idle in the days of waiting, cutting some plastic sheets, occasionally operating the island robot to make some parts on the satellite, with the information and video brought back by the US Department of Defense, the processing of some parts is carried out step by step. The shells of some parts are machined out first, and then assembled together after the internal parts are processed.

Half a month later, Zhang Tao remotely controlled the submarine to the submarine gold mine to check, there was no plant growth on the sand, and there were relatively few fish nearby, this time there was no infrasonic frequency of marine animals, it seems that the effect is good and can be produced in large quantities, and the rare earth submarine in Muao Bay can not be transported, Zhang Tao plans to use it as his own warehouse, and take it as he goes, so he plans to use plastic sheeting and oil soil to pack some soil similar to rare earth after taking away rare earths and replace them. To be continued.