After He Hao returned to the cockpit, he was surprised to see that there was a virtual imaging panel directly below the main controller. Positioned slightly to the left, it seems to make room for the remaining two types of research storage crystals.

The light blue glow trickles down the page, which is quite dazzling. There is a biometric password lock before entering the interface, and the password is the same as the central core. In other words, the control of it is limited to He Hao himself.

After entering the interface, the internal icons are almost all black and white, and you can't see the details. But you can see the name of the level, which is divided into 4 levels -

Super Age Technology.

Outer space technology.

Star Field.

Space Network Technology.

Only the ultra-modern technology at the top is a colorful icon that identifies a bent robotic arm welded to some kind of plate. He Hao only needs to touch it lightly with his metal finger to enter it-

Introduction to Super Era Technology: Super Era is the premise of leading the direction of science and technology. The science and technology of this period represents the germ of the progress of the civilization of the species.

R&D resource requirements: finished metals. Natural ores. Trace element. Energy crystallization. Planetary energy.

R&D progress requirements: celestial operating cycles

Unlock Achievements: Extreme Energy Refining, Matter Recovery, Artificial Intelligence, Metal Memory, Meteorite Synthesis, Magnetic Storm Control, Light Cut-off, Gene Decoding.

He Hao looked at the name of the technology on it, and he had a headache. I don't understand what it means. But thinking about the existence of ravens, it doesn't matter if you understand it or not.

On the contrary, Raven explained positively: "This level of technology unlocking is simple and fast. And it's particularly practical. You should collect materials as soon as possible and come back for research and development. ”

He Hao leaned back on the sofa and said, "Okay." However, I need to go to the Daybreak Base to purchase these materials, so I can't develop them for the time being. So what's next? ”

Raven thought for a moment and said, "Let's carry out the excavation of the base car." The early excavation of bunkers is conducive to the official start of defense work. And the cultivation of crops in the wetlands should also begin. Also, it's the defensive wall you sketched, and since you have all the tools, start working on it. In order to prevent the zombie invasion in the morning from happening again. ”

He Hao couldn't help but let out a roar when he listened to the raven's broken thoughts, obviously a trivial matter, which made him more and more irritable......

He Hao, who came out of the base car, saw that Yin Xiao and Lao Jiu had already led the students to start dividing the logs piled up in the open space. Apparently everyone is aware of the importance of the line of defense.

If that wave of zombie attacks happened late at night, the consequences would be terrible. Maybe it's the zombies running around in the open space at the moment......

Armed with a logging axe and a hand saw, the young students divided the logs into arm-thick pieces. Then split the top to the top, which can effectively prevent the zombies from climbing over the fence. Lao Jiu was worried that the sharp part would not be strong because it had become narrow. The method of repeated folding was used to divide the iron sheet into squares half a foot and half a foot. It is then wrapped in a conical body and finally fixed with a string of fine nails. This creates a single wooden grating.

Yin Xiao led a few people, ripped the wire open, and folded it in half into two strands. Use the H-shaped bundling method to put the wooden grid together one by one in 4 nodes. Every time 20 are connected, 1 side is formed. The surface is fixed with cement nails at the junction in an X-shaped cross. It was then reinforced with finished wooden panels that He Hao had collected earlier.

In this way, the extremely strong fence wall was made one after another. As for the question of how to erect it, it will be handed over to Hao Mei and Wu Shuai.

The two men assigned the men to dig a trench with a shovel along the edge of the clearing, which sloped slightly to the outside. The width of the ditch is comparable to the thickness of the fence wall. The depth is nearly two feet. Then the fence wall is pierced into it. The outer side is fixed with the remaining material of the split timber. The inside was fastened with the remaining wire, and then tied to a stake that had been tied into the ground.

He Hao wondered why the fence was placed at an angle, rather than vertically. It looks like it's crumbling.

Hao Mei explained: "The reason for the tilt is to be more firm. Because there is a fixing bracket on the outside. Moreover, the bracket forms a triangle with the fence wall and the ground. So this fixation is the most scientific; The most reliable. The strength is even several times higher than that of vertical placement! In addition, there is a tight bolt of iron wire on the inside. So the fence wall just looks unreliable, but the actual effect is exceptional. ”

"If you need to tilt, why lean outwards instead of inward? Wouldn't it be more reassuring to have a support frame inside? ”

Hao Mei explained again: "The reason why it leans outward is to destroy the balance of zombies or enemies when climbing! Because there is no such large creature that can climb backwards to a high place without the help of tools and special external forces! ”

He Hao thought about it carefully, and this was indeed the case. But he still asked with doubts: "If you want to forcibly push it down." Wouldn't this structure be a breeze? ”

Wu Shuai interjected with a smile: "The part of the fence buried in the soil forms a Z-shaped reverse force with the ground. This means that how much force is applied from the outside, how much force will be applied in the opposite direction at the root. And the fixed rows of fence walls also share this force. So there's no need to worry about it being pushed at all. Unless...... It's a high-level zombie or xenomorph who directly destroys the fence. If it were humans, as long as there were no more than 30 of them, they would not be able to push them down. ”

He Hao seemed to understand a little, but he was still confused. Perhaps this is the difference between professional and non-professional.

In this way, a 2-meter-high solid fence wall enclosing 1,200 square meters of open space was completed. The whole appearance is 'convex'. There is only one exit, and the closed gate is not an ordinary opening and closing type and sliding door type. It's a flipper!

Only when the vehicle enters and exits will it be flipped up from the bottom up to allow it to pass. For pedestrians, ladders are used.

This was designed by Wu Shuai, which not only allows the fence wall to form a seamless connection, but also does not affect the access in the slightest. It's a bit troublesome, but in pursuit of safety. Everyone still unanimously agreed with the design.

The heavy lifting is finally over. It's already dusk and sunset. While everyone sat down to rest, the group of students did not forget to express their opinions and propose improvements to the defensive line.

Xiao Ding proposed to build a watchtower in each of the six corners of the fence wall. This allows you to look over the fence and see the situation in the distance, which is more conducive to defense.

Another girl also suggested that there were a lot of maple vines, roses, and woody moss on the cliff wall of Tenglong Mountain. It can be collected and planted under the fence, so that after a few months, a lot of vegetation will grow on the top of the fence. Not only does it form a natural protective color, but it also hides the scent of human beings. In this way, neither zombies nor humans can easily find this place.

Although there were several people who proposed one after another, He Hao still only chose these two proposals. And I plan to start buying it tomorrow.

At the same time, the task of planting food is also being officially deployed. He Hao checked the hand-drawn map of the surrounding mountains by Hao Mei and Tan Tan, and there were a total of 8 wetlands. There are about 3 acres in total. The farthest from the base is 5 km and the nearest is 3 km. He Hao assigned 4 men and 4 women who were quite familiar with implantology. Separate management of wetlands. Start with potatoes, peppers and tomatoes. The rest will not be planted for the time being. This is because potatoes and dried peppers can be stored for a long time. Tomatoes are high in vitamins and water. It is good for health for people who have been eating canned products and instant meals for a long time.

Then He Hao assigned 6 more boys to open up 2 acres of land not far behind the base, planning to try to grow wheat and corn.

As for the bread tree. It is intended to be planted in a row against the fence wall in the base. It is expected that about 200 seeds will be planted. Once a tree grows into a tree, it is not only a huge source of food, but also a natural barrier.

As for greenhouses, additional materials such as plastic sheeting, aluminum sheets, and glass are needed. So He Hao plans to buy the last batch the next time he goes to Daybreak Base......

After all tasks have been issued. They were dismissed to rest......

It wasn't until after dark that Raven was ready to autonomously control the Brilliant Base Vehicle to dig the bunker from the middle of the base. During this time, He Hao must stay in the base car, using the robotic arm to replenish the starting energy of the base car without any fuel.

Due to the large amount of work, high-intensity noise will be generated. Therefore, it is very likely to attract zombies wandering in Tenglong Mountain. The base car must ensure continuous operation, otherwise once the pseudo-perpetual motion machine is disrupted due to interference, then it will have to re-collect the energy crystalline beads, or deploy repulsion oil to continue the project. If the base car gets stuck in the ground, it will be a big headache.

Therefore, all members of the base must be prepared to deal with everything. So the heavy responsibility was all on the shoulders of Yin Xiao, Lao Jiu and Xiaobei.

It was almost after midnight that all the preparations were completed-

He Hao filled all the looted energy crystals into the mechanical arm, which was used to release the power of the electromagnetic condensation ring, and drive the brilliant base car with more efficient energy output.

Yin Xiao and Lao Jiu, as the strongest combat power, each carried a submachine gun with not many bullets left, a short machete, and a logging axe. Defend the front of the base.

Xiaobei is equipped with a 4.45mm pistol and a military stab, and her main task is to ensure the safety of the two old men, Lao Wang Tou and Professor Chen.

The rest of the boys patrol the base's fences with logging axes and pickaxes. Make sure there are no missed defense points for zombies to get into.

Hao Mei and Wu Shuai led the girls and arranged a lot of large bonfires in the base. As soon as the base car is operational. At the same time, they will light the bonfire to illuminate the battlefield. Otherwise, in the darkness, anyone can only be slaughtered by zombies unilaterally.

Why not let the Brilliant Base carry everyone to the excavation work?

That's because the base car has to unfold and deform after digging to a certain depth. No living organisms are allowed in the car during this time, otherwise there is a high risk of fatal danger during the transformation process. And He Hao himself has gravity field protection, he can push himself back to the ground at the moment of unfolding the transformation, and then hand over the rest of the work to the raven.

……

"Rumble. Bang. ”

With a terrible metal twisting loud sound, the excavation mission has officially begun!

I saw that the front half of the body of the brilliant base car was switched to the memory carbon titanium power group type 1. Because of the sudden surge in weight, the front of the car began to sink into the soft mud as if it were stuck in a quagmire. At the same time, the front end of the car also began to deform -

The pointed cone protective shovel first separates to the sides, then staggers up and down, and the protective spear formed in the middle and later stages is retracted to the crystallization refiner against the metal hose to protect it.

The next moment! The staggered protective shovels slowly rotate in different directions clockwise and counterclockwise.

At first it was slow and there was a "buzzing" sound. However, after a short warm-up, the speed of rotation of the two protective shovels increased dramatically. And then there was the deafening "boom"!

Because of the violent friction with the air, the protective shovel gradually turned from dark red to bright red, especially the tips of the two protective shovels, which were actually red and shiny. Fortunately, the memory carbon is too material, otherwise it would have been rubbed out in the rotation preheating.

When this red streamer was connected in a ring, the Brilliant Base Car looked like a spear of blood light, which was extremely gorgeous. The red lightning that jumped out from time to time made the people on the side cover their foreheads and retreat.

The strong air flow generated by the rotation blows the sand and gravel on the ground. The base with a radius of 1,200 square meters set off layers of rolling sandstorms. The weeds on the ground were blown straight into the sky. People's clothes were whipped with a "grin" sound. Even the thin female classmate who was hiding in the distance had to hold on to the fence next to her to prevent being blown to the ground, and the fluttering ink-colored long people couldn't open their eyes.

Lao Jiu bared his teeth and squinted his eyes, watching the brilliant base car gradually sink into the ground because of the excessive weight on one side. Stupidly chanted: "It's so exciting! ”

The moment the ultra-high-speed rotating protective shovel touches the ground! The Brilliant Base Car is like a mad beast. I plunged into it with an extremely wild attitude!

The next moment, the whole mountain, no! The earth is trembling!

The terrible cracking sound, like the wail of nature, resounded in the sky!

A large amount of dirt will be pushed out of the erupting oil well, smashing everyone and fleeing in all directions.

The screams of beasts sounded faintly between the mountains and fields, and the birds in the forest were scattered all over the world.

"Ignition! Ignition! Man your posts! Man your posts! Yin Xiao and Lao Jiu, who came back to their senses, hurriedly gave instructions to the girls and boys in the distance. Even a girl in one direction was dizzy from the loud noise, and she couldn't hear the shouts of the two of them at all, and it took a long time to react, and then she shivered and lit the bonfire.

One by one, the beating flames burst into flames, casting a blood-colored glow over the entire base walls.

The speed of excavation of the brilliant base vehicle was at first, reaching an astonishing 2 meters per second. But as you touch the rock formations, the speed slows down. Even because of the conduction of destructive forces. A landslide occurred on a very distant mountain.

Yin Xiao looked around the cliffs around the base extremely nervously. Aside from a few large loose rocks and patches of fine sand, there seems to be no possibility of a landslide here.

Gradually, as the brilliant base car continued to dig deeper, the deafening loud noise became weaker and weaker. It's just that the tremor under my feet is getting stronger and stronger. After more than ten minutes, the loud noise became completely dull. At this moment, everyone breathed a sigh of relief, and finally no longer had to endure the pain caused by the eardrums.

"I don't know how long it will take to complete this project. I'm a little sleepy. Lao Jiu said to Yin Xiao with a haha.

That's it! A scream came from the rear of the base, "The zombies have appeared!" ”

At the same time! Screams were also heard from the left side of the base: "Zombies! Xenogene! ”

What's even more terrifying is that even the reproduction gate directly in front of the base has a violent crashing sound! Suddenly, the strange roar of zombies suddenly sounded around the base. It's as if these undead monsters were conjured out of thin air!

"Fight! Fight! Defend the base! Yin Xiao and Lao Jiu, who had come back to their senses, roared hoarsely and vigilantly!

The corpses are striking again!