A month can change many things.


    Sun Cheng stood above the cliff several kilometers high on one side of the sailor canyon. Under the super vision of Decepticons, even if the canyon below him was more than 5000 meters deep, sun Cheng could still clearly see everything in the canyon.


    Hundreds of robots of various types are busy in the canyon, and several engineers are standing aside to command.


    Looking carefully, it is not even difficult to find that in the wide Canyon like the Great Plains, there are already two strange buildings with a radius of hundreds of meters, such as yurts.


    More than ten kilometers away from the two giant yurt buildings that have been built, a third giant yurt is under construction.


    "Recent storms are becoming more and more frequent. Zhinao predicts that the next Martian storm season will be brought. I hope to build a third factory before the storm!"


    A month ago, sun Chenggang just arrived on Mars.


    At that time, because God was beautiful, they did not directly experience the legendary terrible Mars storm.


    However, the good days did not last long.


    God obviously won''t bless only one person forever. The good weather didn''t last long.


    Almost from the fourth day of sun Cheng''s landing on Mars, storms began to blow.


    The first few days were relatively small and lasted only one or two hours.


    Then the storm began to escalate a little, and finally ended one day like the end of the day.


    Because the strong wind was really strong enough, the Mars base was not prepared for the moment. As a result, more than a dozen robots were blown away by the sudden storm.


    After that, although the engineers found and repaired most of the lost robots according to the locator, four were still missing.


    Today is a sunny day I haven''t seen for a long time. There is no storm, but the two fire detection satellites have sent very bad information.


    According to the current temperature difference, air pressure and other data of Mars, a pseudo intelligent brain brought to Mars by sun Cheng from the earth and placed in the base judges that a terrible Martian storm that may last for a week or even more than half a month is coming.


    During the storm, the robot obviously couldn''t work outdoors. Fortunately, Adam and Prometheus had thought a lot of Countermeasures in the previous storm.


    With reference to some architectural knowledge on earth, they designed hemispherical buildings in the canyon that look very much like yurts.


    This building is an underground metal mining and smelting plant. The two giant yurts that have been built are located near a mineral vein, 17 km and 39 km away from the underground caves that have been transformed into Mars bases.


    This is a building specially designed for the Martian storm. Although it covers an extremely wide area, it is only less than ten meters high.


    It is difficult for strong winds to pose a substantial threat to this relatively low building. The inside of the two giant yurts is made of all metal structure.


    In addition to the top floor, the surrounding of the giant yurt is also stacked with waste earth and rock excavated during engineering construction, with a shell nearly two meters thick, which can resist the impact of stones rolled up by most storms and ensure the safety of engineers and robots inside.


    Inside the two giant yurts, there is a mining channel leading to the underground vein and a transportation channel connecting the base through the underground.


    Of course, the above are still on the design scheme for the time being.


    In the past month, although almost more than 90% of the engineers and robots in the whole Mars base have been invested in the construction of three giant yurts.


    However, because the amount of work is too huge, so far, only the construction of ground facilities of two giant yurts has been completed.


    With regard to the underground transportation channel that is more than ten or even tens of kilometers long, the construction of No. 1 Giant yurt has just started, and No. 2 has not even started.


    But when the storm comes, engineers and robots can''t go out to work.


    At that time, all robots will be concentrated on the Mars base to excavate the underground transportation channel.


    I believe that the underpass will be successfully completed in a short time.


    For the construction and development of Mars base, the most scarce resource is not all kinds of rare metals and rare earths, but water.


    Water is a strategic resource necessary for industry, which is very important not only for humans, but also for cybernetians.


    So far, sun Cheng and his team have not found groundwater resources on Mars, but they have found glacial areas and a small amount of solid ice.


    Unfortunately, they found that the nearest area of solid ice was more than 780 kilometers away from the Martian base, which could not be used until a large transporter was built.


    However, this does not affect the Mars base to get on track bit by bit, because Cybertron is a metal planet. Although there were rivers, lakes and oceans on the planet in the initial period, with the civil war lasting for millions of years and the destructive exploitation of resources in the occupied area by the Decepticons, Water resources could not be obtained from nature as early as the early stage of the second civil war.


    Therefore, both Autobots and Decepticon scientists have developed a series of methods to synthesize and generate water resources in order to maintain industrial use.


    For example, the current Mars base, because it is not on track and all kinds of machinery and equipment are insufficient, can only use chemical synthesis and temperature difference to synthesize water resources.


    Although the synthetic water resources at the Mars base can not meet the needs of industry for the time being.


    But because neither Decepticons nor robots can survive without water, they can endure it.


    Anyway, with the continuous development of the Mars base, the snowball effect will soon roll up.


    Although the natural environment here is no better than that of the earth, the initial development speed of the Mars base can certainly not be compared with that when the No. 2 base was just established in South America.


    But after all, this is a planet that has not been visited by outsiders. At present, only sun Cheng and them have focused on and developed it.


    I believe that as more and more Decepticon engineers and engineers are cultivated and more robots are manufactured, the development speed of Mars will only be faster and faster, and sooner or later it will throw away the earth, which has begun to be constrained by various constraints.


    "So, more than a month has passed in the twinkling of an eye. I don''t know what''s going on on on the earth now. Should I go back?"


    Looking up at the sky, sun Cheng began to remember the earth again.


    Before participating in the first flight test of the hope test spacecraft, he had informed several men, such as the forerunner, to notify himself immediately in case of uncontrollable danger on earth.


    From the past month, the pioneers did not send interstellar communication to themselves, it should be safe on the other side of the earth.


    But it is impossible to say that he is not worried.


    After thinking for a little time, sun Cheng finally made a decision.


    "It''s time to go back!"


    But before that, he was going to do another small experiment.


    ……


    ps：


    I have something to do temporarily. I didn''t get home until five o''clock. Today, I''ll try to see if I can watch three.