Regarding Cheng Yuan's invitation, Liu Changfeng didn't think about it, so he nodded and agreed.

Her original goal was to enter the technology crystallization company, but now that Cheng Yuan has directly invited, she will not object at all.

Seeing that Liu Changfeng agreed, Cheng Yuan smiled with satisfaction.

After the conversation between the two ended, Cheng Xin, who had not spoken, finally spoke, she pouted, looked at Cheng Yuan dissatisfied, and said, "Brother, you patronize and talk to Changfeng about things, we haven't eaten lunch yet!"

As she spoke, she rubbed her stomach in a hurry.

"Okay, I know you're hungry, let Fang Jing take you to lunch. Cheng Yuan saw his sister staring at him with an unhappy face, and said with a wry smile.

When Cheng Xin heard this, her slender eyebrows wrinkled unconsciously, and she wondered, "Brother, don't you eat it?"

"Who said I wouldn't eat it?" Cheng Yuan was stunned for a moment, looking at Cheng Xin with some curiosity, not understanding what she meant by this.

"Then what do you say to let Sister Fang take us to lunch, won't you go with us?" Cheng Xin stared at Cheng Yuan, waiting for his answer.

Cheng Yuan suddenly said with a smile: "I still have some things here, I may eat late, don't you still have classes in the afternoon, eat early, and just let Fang Jing send you back to school when it's over." ”

Hearing Cheng Yuan say that he had something, Cheng Xin was slightly disappointed and said, "Okay, you can be busy with your business." ”

Cheng Xin can also understand that Cheng Yuan has not been home for a long time now, not to mention that Cheng Yuan now has his own career, even if he doesn't have this career, he has to stay in school.

What's more, when Cheng Yuan gets married in the future, he definitely can't live with his parents and her, and he still needs to move out.

Therefore, the family understands Cheng Yuan's situation at this time.

As long as Cheng Yuan goes home during the New Year's holiday, they will be satisfied. This will not disturb Cheng Yuan.

"Okay, let's go to dinner with your classmates, and then go back to school and work hard. In the future, your brother and I will have to rely on you to help me share some things. ”

Seeing his sister's disappointed face, Cheng Yuan comforted him softly.

To be honest, Cheng Yuan's stall is quite big now, and there are few people who can use it, which is one of the reasons why he has not opened a branch.

There are no managers!

Even if it can be hired outside, this supervision cannot keep up.

While Zero can help him monitor everything in the company to a large extent, there are always things he can't judge.

Therefore, even if he came up with graphene preparation technology, it was directly placed within the company, rather than reopening a new material company.

"Got it!" Cheng Xin is also a person who knows the severity. Hearing Cheng Yuan's words, he nodded to show that he understood.

Subsequently, Cheng Xin and Liu Changfeng, under the leadership of Fang Jing, left.

After the three of them left, Cheng Yuan hurried upstairs and returned to the laboratory.

At this time, in the laboratory, four humanoid robots that exude an icy aura stand there in a row.

The height of the robot is 1.9 meters, and the body is thick. It is covered with a hard, silvery-white nitinol shell, and is very similar to Iron Man armor.

Nitinol is a shape memory alloy that automatically returns to its original shape at a specific temperature. And its expansion rate is more than 20%, and the fatigue life is 1*10 to the 7th power. The damping characteristics are 10 times higher than that of ordinary springs, and its corrosion resistance is better than that of the best medical stainless steel, so it can meet the needs of various engineering and medical applications, and is a very excellent functional material.

This metal is used to create the shell. In addition to making the robot lighter and stronger, it can also reduce maintenance and maintenance costs in the future.

In addition to the materials on the body, there are also differences in the palms, the energy furnace on the chest, and the internal design.

The materials used in these four guard robots that have been deleted and modified are the truckloads of titanium alloy that Yang Qiaoyuan brought in last time. At that time, it was directly detained by Cheng Yuan, and now it is used rationally.

The palm of the guard robot is in a row of sharp claws, and each sharp finger is equipped with various functional appliances.

Graphene solar absorbers are installed on both shoulders, backs and chests of the guard robot, and the driving energy inside it is a graphene solar cell that has not yet been released.

These solar panels can effectively bring powerful power to the robot.

Of course, compared with miniature nuclear fission reactors, this battery still has a big gap. But for Cheng Yuan, it is the most suitable.

After all, these robots are not destined to participate in too many battles, and their role is probably more to deter and protect.

Because after Cheng Yuan developed the Z1 robot, the protection of him from above has increased to another level.

Finally, because the guard robot belongs to intelligent control, unlike Iron Man's armor, which can load people, so the internal space is very sufficient, and Zero places the energy and intelligence core in the chest position, and also adds a protective plate in this part.

"Sir, Fang Jing and the three of us have already left, can we start testing?" Soon after Cheng Yuan came to the laboratory, Zero said loudly.

Cheng Yuan nodded and said, "Let's start, let me see if they are more flexible than Z1." ”

"By the way, the data of combat skills have been loaded, right?"

"Yes, do you need to add any additional data?"

Cheng Yuan shook his head and said, "No need, since there is already one, let them start." ”

Hearing Cheng Yuan's command, Zero responded: "Okay." ”

As the sound of zero fell, the four guard robots suddenly activated, eight pairs of cold blue eyes lit up, and then the two faced each other, starting the first actual combat test.

"Wait a minute!"

Suddenly, Cheng Yuan opened his mouth and shouted to stop, and the four robots turned their heads to look at Cheng Yuan at the same time, and Zero's voice sounded: "Do you have any other orders?"

Cheng Yuan pointed to his laboratory and said, "This place is too small, we should go to the rooftop to test, so that the robot can let go of its hands and feet during actual combat, and there is no need to worry about where it will be damaged." ”

"Yes, sir. Zero did not object to Cheng Yuan's proposal, and then the four guard robots walked towards the rooftop under Zero's control.

At the same time, Cheng Yuan also opened a virtual window in front of him.

Inside the window, the appearance of the four guard robots is clearly visible.

Soon, four robots came to the rooftop, and two groups stood ten meters apart.

"Let's get started!"

Cheng Yuan saw that they had already stood firm, and ordered.

Cheng Yuan gave an order, and the four escort robots started at the same time, and rushed towards each other with their legs.

At the moment when the robot moved, on the virtual window in front of Cheng Yuan's eyes, there was suddenly an additional number on the top of each robot's head.

The two on the left are No. 1 and No. 2, and the two on the right are No. 3 and No. 4.

At the same time, there are two more virtual windows next to Cheng Yuan, which respectively show the mechanical reactions and energy consumption inside several robots.

To the left, No. 1 started the fastest, while No. 2 followed closely behind. On the right, No. 3 and No. 4 are neck and neck as they rush towards their current opponents.

The movement of the four robots running was very smooth, and through the data reaction of the window, Cheng Yuan did not find any problems.

On the rooftop, when there was still a distance of about five meters between the two sides, No. 1 suddenly jumped up, raised his right arm back, clenched his right hand into a fist, and his body adjusted slightly in the air, making a standard flying fist movement.

In the face of No. 1's attack, No. 3 was also not to be outdone, and his body rose from the ground during the run, and smashed No. 1 with a punch to the sky. At the same time as No. 3 made a move, No. 4 also followed, and also jumped up and kicked No. 1.

In the face of the combined punches and kicks of No. 3 and No. 4, No. 1 didn't seem to see it, and still rushed forward.

And at this moment, the number two behind him also moved.

No. 2, who had been following him closely, suddenly accelerated, and the moment No. 4 jumped up, he grabbed the opponent's ankle accurately, and then violently dragged the opponent's body towards No. 3.

All of a sudden, if it were placed on a human, it would definitely be No. 4 smashing on No. 3, and then the two robots would fly out like a rolling gourd.

But for a robot that can perfectly control every part of its body, in the face of such an attack, Three and Four are not in a hurry.

At the same time as No. 2 made a throwing motion, No. 4 grabbed No. 3's hands at a very fast speed, and then followed No. 2's strength, and No. 3 changed his fist and kicked No. 1 fiercely.

At the same time, at the moment when No. 3 kicked No. 1, No. 4 let go of his hand, and was still thrown out by No. 2 by his body.

Such a result is equivalent to one for one.

Neither side has been able to claim any favors.

And just after the first and fourth were knocked away, the second and third directly began to attack at close range.

......

In the laboratory, Cheng Yuan didn't pay much attention to the attack movements of the four escort robots, and his eyes were always closely following their internal mechanical reactions and energy consumption.

Judging from the data reaction, the operation of the four escort robots is almost perfect, and every part inside them is running perfectly in one action after another, without the slightest error.

Therefore, the movements of the four guard robots at this time are fast, clean and neat, without the slightest lag.

"They performed very well!" Cheng Yuan's eyes lit up slightly, and he couldn't help but praise as he looked at the four guard robots with fighting scenes comparable to the scenes of science fiction movies.

"They've done my calculations hundreds of thousands of times, and now there's a 1 in 1 million chance of an internal error, and I don't think there's anything special going on, and they basically don't have any hardware errors. ”

Hearing Cheng Yuan's admiration, Zero replied with a little pride.

"Yes, what about the Z1 robot before?" Cheng Yuan looked at the perfectly performing guard robot, and suddenly remembered the large robot in the [Z-1] base.

"If it is a standard manufacturing according to our design, the Z1 has a 1 in 100,000 chance of error, of course, the chain reaction of large robots is more complicated, and I think the maintenance of Z1 needs to be more rigorous. ”

"That's fine, I don't want the Z1 to give me moths in the actual combat testing stage. Thinking of the Z1 battle test mentioned by Ma Zhicheng last time, Cheng Yuan's confidence is even stronger. (To be continued.) )