There are many things to consider when designing a submarine. After all, people cannot stay in a small and dark place for too long, otherwise all kinds of mental illnesses will inevitably occur. But it doesn't matter that much design underwater robots. Anyway, Xu Zhengyang will not go into the water personally, so the robot only needs to have a hard shell that can withstand the water pressure of the deep sea, and can launch torpedoes! That's why. In just over a dozen minutes, Xu Zhengyang and Dabai designed various models and functions underwater robots. Finish all this. Xu Zhengyang issued an order to Dabai, "For the time being, all the production capacity of combat robots is used to produce underwater robots!" "Good master." Dabai meticulously carried out Xu Zhengyang's orders. *

The water has great resistance, so traditional kinetic energy weapons will have great limitations underwater and their power will be greatly weakened. Not only that. As light passes through water, part of the energy will be absorbed, and it will also cause refraction, scattering, etc., so laser weapons cannot produce all their power underwater. As for Xu Zhengyang's energy-gathering electromagnetic cannon, it has no effect on getting wet a little rain, but if the whole can be soaked in water... That's not much different from a fire stick. When I think of this. Xu Zhengyang thought for a moment and said to Dabai, "A torpedo production line is added to the production area, and then the production of various types of torpedoes will be fully started!" "Okay master." Dabai agreed and immediately sent a construction renovation drawing to Xu Zhengyang's contact lens. At the same time, he said to Xu Zhengyang, "Master, you can first use the magnetic nerve skills to transform the shelter into a room before I can produce and add production lines." Xu Zhengyang was stunned for a moment when he heard this. It was then that he suddenly remembered that his refuge had become an aerospace mothership made of all special steel. Naturally, we cannot use reinforced concrete to build compartments in shelters like before. "good." Xu Zhengyang agreed and immediately followed the architectural drawings handed over to him by Dabai, and used the magnetic nerve skill to separate Dabai a workshop for fish production. When Xu Zhengyang transformed the shelter into an aerospace mothership, he had almost used the remaining 50,000 square meters of space during the fifth phase of the shelter. Now. When Xu Zhengyang distributed the last redundant space of the shelter to the torpedo production workshop, filling the shelter space. A series of system subtitles suddenly appeared in front of him:

[Limited time challenge mission: Steel Fortress (in progress)] [Sanctuary is the foundation of your existence in the end of the world. Now, you need enough steel to continue to expand your shelter! 】 [Mission goal: expand the shelter to at least 2 kilometers x 1 kilometers x kilometers of steel fortress] [Task Limit Time: 29 days, 23:59:54 seconds] 【Task Reward: Skill Card·Transformation (Only)】 Seeing the main challenge mission that suddenly appeared in front of you, Xu Zhengyang was surprised and happy, "The only skill, transformation?!" After seeing the mission reward. Xu Zhengyang couldn't help but guess, "Can this skill allow me to turn the shelter into a super robot. Then do you think of the shelter as a super large mecha? ” When I think that I can become a steel giant beast two kilometers long and one kilometer wide in the near future. Xu Zhengyang felt an uncontrollable excitement in his heart! So Xu Zhengyang immediately told Dabai, "Using the super-time and space transmission platform, gradually began to occupy all the iron ore nearby within 2,000 kilometers. Let armed mining vehicles start to be fully mined! ” Having said that. Xu Zhengyang paused for a moment and continued, "At the same time, we sent engineering robots to directly destroy the buildings that did not live in survivors. Then recycle all the steel in the building! ” Generally speaking. Even fine iron ore with an iron content of 60%, the iron produced is around tons to tons. But it is different to dismantle abandoned buildings. Just find a way to remove bricks, concrete and other construction waste on the building. Inside is steel that can be used directly to strengthen the volume of the shelter! Compared to the east and west, armed mining trucks need to be busy for a long time before collecting a truck of iron ore veins from fine iron ore. Destroying highly concentrated buildings in the city makes it easier to collect enough steel! No mistakes, one song, one content, one in 6, one book, one bar, one reading! "Okay master." Dabai agreed and sent out 95% of the engineering robots in the shelter. Starting from near, we will take the lead in blasting and dismantling various buildings in Baicheng that do not live in survivors, and collect the steel inside! Dabai acted as he followed Xu Zhengyang's instructions. While he spoke, he reminded Xu Zhengyang, "Master, a cubic meter of iron weighs tons.

According to the mission goal, it is necessary to build a steel fortress of 2 kilometers x 1 kilometers x kilometers. Even if one-third of the interior of this steel fortress is solid. That also requires at least , which is million tons of iron. So much steel is almost as good as the steel production of some small countries before the end of the world! Such a large steel gap. I am afraid that I will not be able to get enough steel in one month by relying solely on the smelting workshops and the recycled construction waste. ” After hearing Dabai's words, Xu Zhengyang smiled and explained, "Of course I know this. I won't be idle even if you do something for you!" Xu Zhengyang said, and continued to Dabai, "Use satellites to search for all ocean-going giant ships around the world, mark the locations to me, and I'll recycle them one by one!" Before the end of the world. Large container ocean-going ships like those, basically have air ships of about 15,000 tons to 30,000 tons, and they are basically made of steel! So when Dabai heard Xu Zhengyang's words, he instantly understood Xu Zhengyang's thoughts and said with conscientiousness, "I am worthy of being the master!" Due to my core algorithm architecture, I can never be able to solve problems with a jumping mind like my master. ” "Ha ha ha ha." Xu Zhengyang smiled and said, "But you can help me handle those boring and meticulous things in an orderly and meticulous manner. This is something I can't do, we can be considered complementary. ” Xu Zhengyang said. Immediately, pressing the coordinates given to him by Dabaihai, the Hurricane Light Multi-function Mecha in the form of a shuttle began to operate! In the next time, Xu Zhengyang and Dabai will work together! Dabai manipulated armed mining vehicles to collect iron ore smelting, and manipulated engineering robots to blast uninhabited buildings and recycle the steel inside; Xu Zhengyang drove a shuttle-shaped Hurricane light multi-function mecha to and from the beach and shelter. Clean up the ocean giant ships occupied by bloody creatures, then load them into the exclusive dimension and take them back to the shelter.