Raw materials are readily available in the warehouse. The power supply is equipped with a variable adapter, which can be powered by a generator or inserted into a fusion battery with a standard interface.

Like the black box Chu Guang got from the manager's office of refuge 117, the black box here also has its own battery, and the remaining power is 98% and 99%.

Helium III is a stable isotope with a very long half-life. Under normal use, the loss caused by natural decay can be almost ignored. Basically, as long as the battery itself is not damaged due to improper operation or other reasons, the storage of energy will be much longer than that of conventional chemical batteries.

Chu Guang told Guo Niu through VM to send all the materials he needed. By the way, he also called Dr. Yin Fang, the chief explorer of No. 404 refuge and head of the scientific research group.

As soon as he entered the door, Yan Fang's eyes almost fell out.

"Black box?! and it's still two! Where did you get it?"

Class s relic!

There are two at the same time!

Just the day before yesterday, Chu Guangcai got a black box. Unexpectedly, he got two more in less than three days.

It has been five or six years since he became an explorer after graduation. This is the first time he has seen such an exaggeration!

Look at this guy's inexperienced expression, Chu Guang rolled his eyes and threw the manual he had just picked up into his hand.

"I picked it up. See if it will work?"

Yan Fang smiled.

"Can a fool use this thing... Have you checked the fuel of the reactor? How much is left?"

"There are quite a lot of accidents, about 40%."

Chu Guang doesn't know what 40% is. If it's a mobile phone, his charging obsessive-compulsive disorder must have been committed, but it's said that 1% of the energy of the controllable fusion reactor can be used for a long time?

I don't know how much energy is consumed in clone synthesis.

But anyway, now the reactor is finally in his own hands, and the stone hanging in Chu Guang's heart is finally put down.

Hearing Chu Guang's words, Yan Fang was obviously relieved.

"40%? That's good... Don't worry in a short time!"

Without worries, Yan Fang began to operate two black boxes.

In the stuffing opening like a drawer, input the materials in turn according to the instructions, and then close the drawer. Although not in order, it can be done a little faster.

The signal light is on, indicating that the material is qualified.

Then turn on the power and press the start button.

All processes are completed, which is very easy.

It's as simple as some kind of religious ceremony.

Looking at the numbers beating on the screen, Chu Guang touched his chin.

"The remaining production time 59min27s... Waiting so long?"

Next to another small black box for VM production, the production speed is faster, and a product can be manufactured in only ten minutes.

Assuming that the supply of raw materials is continuous, 144 VMS can be produced a day in theory.

This thing is a good thing.

VM with processor, imaging equipment and laser mapping function can not only be used as "vital sign monitor" itself, but also be modified into other things.

For example, robots with laser mapping and automatic pathfinding functions.

Another example is a simple computer and so on.

With the "neural connection equipment" produced by the black box left by Dr. principle in refuge 117, as long as the materials are sufficient, the transformation degree of players can be directly increased by 10 percentage points!

Intelligence players will usher in a real spring!

It can be said that it is very easy to use.

Yin Fang: "I heard that the working principle of the black box is to powder the materials first, then print out the parts of each component in turn according to the preset synthesis route and spatial sequence, and generate the products as a whole... It will take a little longer than the assembly line mode."

Chu Guang said.

"Equivalent to building wheels and engines at the same time?"

Yin Fang affirmed.

"That's understandable!"

Chu Guang nodded thoughtfully, indicating understanding.

This thing is like a 3D printer.

However, its function is much stronger than 3D printer. It can not only print the shape of the device, but also print the "performance" of the material and the microstructure and macro structure of the device, and complete the automatic assembly in the printing process.

This has gone far beyond the concept of "printing".

More like the reconstruction of "atoms in PM scale space"!

Xia Yan, standing aside, scratched the back of her head. She couldn't talk about this troublesome topic at all.

She can repair machines with a wrench or process parts with a simple workbench. After all, the slums of boulder are built next to the industrial zone. There are two ways for people there, either working in the assembly line or workshop to death, or holding the weapons produced by the factory, becoming a mercenary and exchanging their lives for money.

And she happened to go both ways.

After thinking for a while, Xia Yan felt that if he didn't say a word, he wouldn't seem very useless, so he held it for a while and reluctantly inserted a word.

"This machine sounds strange and easy to use... Can you take it apart?"

Hearing this, Chu Guang didn't respond, but Yan Fang nearby was as frightened as a dog with a trampled tail and said quickly.

"Don't do that!"

Xia Yan scratched the back of his head and asked, "why? Logically, shouldn't this kind of thing be a good research material?"

Hearing the layman's speech, Yan Fang shook his head and said.

"A common sense is that the more technology intensive products are, the more difficult it is to reverse. You just need to screen out a grain of gold from a pile of sand. But if you stand on a sand dune and sort and recycle each grain of sand, it is almost impossible... Unless you have mastered more advanced tools and methods."

"The black box of the Ark Project, whether in terms of production methods or technical principles, represents the highest level of the people's alliance manufacturing industry. It has no requirements for the performance of materials and the education level of operators - even the level of intelligence. Even monkeys in the zoo can use it."

"This kind of wishing machine can be said to be the technical crystallization of pre war civilization. Unless it is much higher than our civilization in terms of production methods and basic science, no one can disassemble what is needed from this complex and cumbersome equipment."

Xia Yan muttered.

"I just asked casually, but I didn't say I really wanted to dismantle it... But it's so difficult to serve. How should I repair it if it breaks down?"

"If it can't be repaired, it will break," Yin Fang shook his head. "In college, the broken black box will generally be sent to the museum. Maybe someone can analyze it hundreds of years later... But at least it's impossible now. We'd rather study the products produced by the black box, at least it will be much less difficult."

Yin Fang's answer answered part of Chu Guang's questions.

It seems that even the college has no ability to disassemble the technology in the black box. At most, it is only the product of studying the black box.

At last he took a look at the timer on the screen, and Chu Guang said.

"It seems that there is still some time for the answer to be revealed... Let's check the buffer room next door."

Yan Fang was stunned.

"Buffer room? Isn't this B3?"

Chu Guang nodded.

"Yes, there is not only one door in shelter 404. I even doubt that the door on the B3 floor is the real entrance."

In terms of space, the gate on B3 floor is obviously wider than that on B1 floor, and connects the warehouse and planting area.

What does this mean?

It shows that the shelter is likely to be built from the B3 floor, and then extend up and down at the same time!

Of course, this is just Chu Guang's speculation. If he finds other more exaggerated exits in the lower floor, he didn't say.

Every time Chu Guang thinks that he has fully understood the shelter and the plans of the first generation of managers, the shelter under his feet can always bring him unexpected surprises.

Chu Guang even suspected that the designer of the shelter might be a game player.

……

Everything outside the B3 gate is unknown. No one can tell what will happen.

If the situation is optimistic, it may be the colored eggs left by the first generation of managers.

If not optimistic, it may also be a nest of mutant mice or cockroaches.

Just in case, Chu Guang brought the power armor from the servicing room on the B1 floor. While carrying the nitrogen power hammer and Gauss Rifle, he also took two sickle assault rifles, a bulletproof vest and a backpack filled with 7mm bullets.

The bulletproof vest is for boss Xia.

Returning to the servicing room on the B3 floor, Chu Guang threw a sickle assault rifle and a police bulletproof vest into Xia Yan's hand.

"I don't have to teach you to use it."

He put his bulletproof vest on his body. Xia Yan easily tied his long red hair into a horse's tail and picked up the rifle leaning against the wall.

"Are you kidding? I am..."

"A mercenary who added a chicken leg to the climber's lunch box?"

Looking at the murderous summer salt on his face, Chu Guang quickly closed his mask, coughed and walked in front.

"Follow me."

Xiao Qi rolled the pulley and followed Chu Guang behind.

Seeing that he had no weapons, Yan Fang hurried to catch up and asked.

"What about me? Give me a weapon! In case of an accident, I can fight!"

Chu Guang thought and threw the silver snake revolver hanging on the power armor to him.

"Remember me."

"Just six bullets?!"

"I'll give you more if you need it."

The gate on the console pulled down and Chu Guang pressed the red button.

The alarm bell in the servicing room rang three times.

The door bolts as thick as thighs were put away one by one, and the gear shaped alloy door rolled slowly to one side, revealing the dark tunnel.

The cold and dry breath came to my face.

Chu Guang turned on the searchlight on his shoulder and walked forward with a "sickle" assault rifle.

The soles of your feet creak on the ground. The dust here is very thick. No one has been here for a long time.

The light in the passage is very dark, which can be described as reaching out without seeing five fingers.

Fortunately, there are lighting devices on the power armor, and the other two also carry torches.

By the light from his shoulder hair, Chu Guang could see a steel rail laid on the ground and a few construction tools scattered around.

"There is no tunnel on the map," Yin Fang confirmed the map through VM, and then said, "our due south direction is facing Metro Line 12 in Qingquan City, with a straight-line distance of about 4km! The due north direction coincides with the out of town elevated road, facing outside Qingquan city."

Line 12 runs through the north and south of Qingquan city. Huayuan street subway station is one of the stations of line 12.

Chu Guang raised his index finger, tapped on the side of the helmet and opened the map on the eyepiece.

The orange window is projected onto the tactical eyepiece.

The nearest subway station is located near Beite street, about 800 meters away.

Chu Guang had been there, but he didn't go in. He just took a look outside. The inside has been completely occupied by gnaws.

There are probably other difficult things to deal with.

"What if it goes north?"

Yan Fang slightly and dragged the map.

"To the North... We are in the northernmost part of Qingquan city. To the north is outside Qingquan city. There is no subway line on the map."

The tunnel runs from north to south. The exit of the shelter is located on the side of the tunnel. After passing through the iron gate, there is a way from south to north.

"Go to the North first."

With that, Chu Guang took the initiative to walk in front and took the team to the north.

About 800 meters ahead, the tunnel suddenly stopped, and an alloy wall stopped in front of everyone.

"There seems to be no way ahead," Xia Yan, shining forward with a flashlight, turned to Chu Guang and asked, "do you want to go back?"

Chu Guang stared at the wall for a while, then went to the side of the wall and found something like a power distribution box.

When he opened the lid, he saw a grip and a circular interface.

Interestingly, the circular interface can match the small cold fusion battery.

Chu Guang felt a slight movement in his heart. He felt a cold fusion battery with 11% of the remaining energy from his pocket and inserted it into the interface.

Then he pulled down the next grip.

There was a slight current sound, accompanied by a toothache friction sound, followed by a slight tremor at the feet of the people.

It's like an earthquake!

"What's going on?!"

Yan Fanglue looked around in panic and stepped back two steps.

Xia Yan was quite calm. He took a vigilant look at the ceiling and looked ahead, his eyes slightly widened.

"It's a wall! It's sinking!"

Xiao Qi slipped to Chu Guang's calf and said nervously, "master, it's so dangerous here. Why don't we withdraw first?"

"No hurry, wait!"

Chu Guang stared at the wall in front of him.

It sank slowly, and finally revealed the tunnel behind it after a shaking of earth and mountains.

At this time, people found that the wall was hundreds of meters wide!

It's like a whole raised tunnel!

"Incredible..." Yan Fang took two steps forward, and his face was full of shocked expressions.

Such a thick concrete structure.

At least tens of thousands of tons?

Including the mechanical structure and the load-bearing structure below, it is almost equivalent to burying an aircraft carrier underground!

This metaphor may not be appropriate, but it doesn't make any difference in meaning.

Chu Guang's face was also surprised.

The mechanism itself is not complicated.

However, it is surprising that today, more than 200 years later, it can still start and run without any obstacles!

Just as they were stunned, a hoarse roar and running sound came from the front of the tunnel.

Hearing the sound, Xia Yan was surprised, immediately raised his assault rifle, and his index finger cleared the insurance.

"Nibbler! In front of us!"

Before the voice fell, she had pulled the trigger in her hand and shot the nearest two with three shots.

"It seems that what happened just now has attracted a lot of attention."

Open the auxiliary aiming mode of the tactical eyepiece, raise the light of the sickle assault rifle, sweep it with a shuttle, and the nearest eaters burst out of their heads and fell to the ground and died on the spot!

Just then, a dangerous omen suddenly came.

"Damn it, it's a climber -" a trace of panic appeared on Xia Yan's face, and the memory of fear reappeared in his heart.

But the next moment, the climber's head exploded to pieces.

"Don't panic, I'm here."

He threw the Gauss Rifle on his back, grasped the Chu light of the sickle assault rifle again, skillfully switched back to the automatic fire, and swept several gnawing eaters onto the ground.

A stump on the ground broke its arm.

The stench of decay diffused in the channel.

Yan Fang, who was hiding behind, breathed a sigh of relief and put down the raised muzzle.

Looking at the gnawing people on the ground, as well as the black spots and slime molds on the wall in the distance, his Adam's Apple moved hard.

"I have a hunch... There are many different species in front of me!"

"It doesn't need a hunch. You can see it with your eyes," Chu Guang continued after a pause. "The front area is better left to the 'players' to explore."

With that, Chu Guang put away his rifle, tapped his index finger on his helmet twice, called up the visualization window and skillfully edited it.

[task: clean the exit of B3]

[type: hunting, exploration and tackling difficulties]

[Note: the passage outside the entrance and exit of B3 floor is occupied by slime fungus. We have to take it back from those animals!]

[released to: hunters, scavengers, soldiers, and players with LV5 or higher]

[reward:

Each time you kill a Nibbler, you will be rewarded with 1 silver coin and 2 contributions.

Each time you kill a martyr, you will be rewarded with 1 silver coin and 1 contribution.

Each time you kill a climber, you will be rewarded with 20 silver coins and 20 contributions.

Every time you kill a tyrant

……



——

[task: explore the B3 channel.]

——

[task: investigate the slime mold pollution source in the channel on layer B3.]

……

A total of 5 tasks have been updated in the task channel. Players who meet the conditions of "release object" can receive them freely.

This should be a good practice point.

Even 10000 eaters are only 10000 silver coins.

Even with 500 climbers, it's just another 10000 silver coins.

In this way, players not only gain experience, but also improve the proficiency of shooting, archery, throwing and fighting skills, but also make money.

It's perfect!

If you can get an active substance extractor, you can also deploy one here.

The extraction efficiency of the eater is average. Only 10 can refine 1 unit. However, no matter how small mosquitoes are, they are also meat. A little makes a lot. It's always better to let the bodies of those aliens rot and stink in the tunnel and become a breeding ground for germs.

What they need to pay is just some values that can be adjusted at any time.

Thinking of this, Chu Guang's mouth couldn't help but raise a smile.

Because the benefits are for players.

Even if the players win this wave twice!

He looked at Chu Guang with admiration, and Yan Fang couldn't help sighing.

"Your 'players' are also very easy to use."

It's a model of hard work.

He had never seen such hardworking shelter residents!

Chu Guang joked.

"It seems that you have gradually understood the essence of this game."

Yan Fang was stunned when he heard a word he didn't understand.

“youxi?”

"Combined with the context, free translation means cutting leeks."

Yin Fang: "...?"

-

(11:00 in the next chapter!)