； The underground ecological environment is far more complex than the infected people think. The asthenosphere is broader than the ocean. In the deep sea, there can be so many kinds of organisms without sunlight. There is no doubt that the biological species that can evolve in the deeper magma and mantle will be more diverse.


    It''s just that the environment here is difficult to breed humanoid creatures, just like it''s impossible to naturally evolve humanoid creatures with slow swimming speed in the ocean.


    So at the beginning, the underground people speculated by the infected people did not exist at all. Instead, a group of underground fish were replaced. The intelligence from unknown sources was not uniformly accepted, but because the person providing the information was yak. Still got a certain degree of attention. And strengthened the vigilance against the counter attack of underground intelligent creatures.


    At the same time, an emergency shell and defense system are added to the geothermal extraction device. The construction of geothermal extraction plants cannot be stopped because of the existence of organisms underground. The urban energy crisis is imminent. If you continue to expand. The power supply will be limited, which is undoubtedly a great blow to the national morale.


    Geothermal power plants must be established. Therefore, Silva urgently developed biochemical mecha for fighting in magma. By analyzing the underground organisms encountered before and the intelligence obtained from yak. They made a special design for this new type of armor.


    Firstly, the shape is shuttle shaped, and the propulsion system adopts the propulsion mode similar to torpedo, which is an advantage of machinery over biology. Because biology is a whole. It is relatively difficult to evolve organs that can rotate continuously. Therefore, it is difficult to propel by means of turbines or propellers.


    In terms of linear speed, it is difficult to compare with these small and powerful biochemical mecha. For the high energy consumption and high wear patterns that cannot be evolved by natural selection, artificial genetic adjustment can be considered for manufacturing.


    Thermal insulation materials are used on the surface of biological armor, which can well resist the high temperature in magma. Their small size and fast speed make them more than protect themselves in magma.


    The attack weapons they carry are no longer ordinary explosive live ammunition weapons, but liquid nitrogen filled with tough thermos bottles. The propellants of these weapons are water or compressed liquid air. Different substances can also have different effects in different environments. In the magma, water will vaporize instantly and can be used as propellant. At the same time, the low-temperature track left by the shell is also fatal for underground organisms who can only live in high temperature.


    When the thermos filled with liquid nitrogen hit the target. It will explode in an instant, creating a large low-temperature area.


    The temperature in the low-temperature zone will rise rapidly. For people, this temperature can burn people to ashes in an instant. But for underground creatures living in magma, the temperature feels too low. Enough to easily freeze most of them to death.


    For them, such a low temperature zone is like a sea of fire made by human beings facing cloud bombs. If they are lucky, they may live, but most of them must be dead.


    In addition to these relatively simple pure science and technology weapons, soul guides such as frozen rays excited by soul force are also carried on these vehicles.


    Although light is difficult to spread in magma, soul force itself is not light. After certain modulation, it can have much stronger penetration than light. Although the range is closer, it is also more powerful. And can ensure continuous output. Reduce the temperature of the target to a very low level in a short time.


    Dealing with most underground creatures can instantly paralyze their body tissues. It''s quite powerful equipment. Unfortunately, the only disadvantage of this thing is that there is no way to realize unmanned driving.


    The magma of Douluo star is rich in soul power, which causes considerable trouble for remote control. Fortunately, it is still easy to use in this area. This makes the navigation ability of these vehicles not problematic.


    At present, more than 40 such semi biological and semi mechanical weapons patrol the magma at a rapid speed to protect the geothermal energy generator being built. After the shield generator is established, their defense task can be reduced a lot.


    In addition, several volunteers volunteered to explore the way to find craters in other areas of the asthenosphere. If you can find it. They don''t need to dig another tunnel to break through.


    And even if the Empire has a big brain hole. At best, just in case they dig it out of the ground. Then closely monitor the sudden emergence of underground caves within the Empire.


    However, it is not possible to think that they may follow the magma of the asthenosphere all the way up and come out of the crater. I can think of this kind of play. I''m afraid the brain hole is too big to see the brain.


    According to the picture of underground civilization given by yak, these pathfinders chose a deeper place to move forward. Here, the temperature of magma is relatively constant, and it is difficult for organisms to extract the energy of nature for their own use in this completely constant temperature environment. Therefore, there are very few kinds and quantities of organisms here. There are few obstacles to their existence.


    However, their trace was found after all. Do you want to pass through other people''s territory silently? And it is a completely strange species without any prior information. It''s too difficult.


    For the less civilized Latu people, the low-temperature objects passing through from below belong to their UFOs. Similar to human sightings of flying saucers.


    Generally, when individuals witness a UFO, they choose to take photos as a souvenir, and then send a twitter to harvest a wave of heat.


    But if the witness is a state official. That''s a serious problem. Maybe it will directly rise to the level of war. For example, first give you a missile and shoot you down.


    Although the Latu people of underground civilization do not have missiles, they have their own long-range weapons. They can manipulate the flowing magma, turn and accelerate the magma originally flowing in a certain direction in nature, and then enter a funnel-shaped area to compress through the funnel-shaped area to speed up the flow rate of magma, so as to achieve the effect of creating strong impact.


    In their country, it is a weapon similar to a cannon. The viscosity of magma is much greater than that of water and air. Although such an accelerated jet is not comparable to non-Newtonian fluid, it also does great harm to solid objects.


    The most important thing is that the attack range of this kind of attack is very large. The exploration team is almost completely shrouded in the attack range. There is no doubt that they can''t choose to wait for death, so the first encounter was launched in such a hurry.


    [to be continued]


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