"If the three of us add Zhou Meng and Liu Chi, the win or loss will be five or five. ”

"......" Liu Bing didn't speak, waiting for Li Haiqing's later text.

"Do you know what Liu Chi taught Zhou Meng? SIS algorithm, force field suspension magnetism, IPE node systematics, Mous ring fission, these are the most cutting-edge fields of computer and artificial intelligence, and Liu Chi can teach all of them. ”

"It can be said that I have taught all the skills of the bottom box. ”

"So powerful? Isn't that even more powerful than Liu Chi?" Liu Bing glanced at Li Haiqing suspiciously.

"It's so good, I've never won against her. Li Haiqing smiled bitterly and said: "Liu Chi, a monster, can she not be powerful? ”

"Really, so fierce?" Liu Bing originally majored in computer science, and he was still very clear about Li Haiqing's positioning, but now he was a little surprised to hear Li Haiqing say that he had never won.

"......" Li Haiqing nodded.

"Well, your circle is full of top students. Liu Bing said curiously: "Then why is she suddenly going back to China?"

"I'm okay with this, I guess I'll come back and play. ”

"Then she should call Liu Chi, why did she call you?"

"How do I know, this girl has been ghostly since she was a child, and the three of us often pit her, and I can't let her be small. Li Haiqing said helplessly.

“......”

Jiang Yu was very fast, and he got the materials back in three days, and Liu Chi rushed into the laboratory with a large pile of materials.

Test materials, etching circles.

Just when Liu Chi was concentrating on the experiment;

"Bell, bell, bell......"

"......" After the mobile phone rang more than a dozen times, Liu Chi picked up the mobile phone, looked at the call, and was stunned for a long time before answering the answer button: "Hey!?"

"Guess who I am?" a grinning and delicate voice came into Liu Chi's ears.

"Kitten?" Liu Chi sat down in the chair, leaned back, put on a comfortable posture, and the corners of his mouth curled, and cooperated.

"That's not right!"

"Puppy?"

"Hmph! Brother Chi is a villain, you are a kitten and a puppy. ”

"Okay, you girl, don't you think that I can't clean you up when the distance is far away, dare to brush me, see if you are going to turn the sky upside down. Liu Chi rolled his eyes and threatened.

"I'm not afraid, haven't you heard a word: the sky is high and the emperor is far away. A burst of laughter as crisp as a silver bell came into Liu Chi's ears.

"What's the matter? My 'Big Guy Zhou' is out of the customs?" Liu Chi changed the topic, otherwise he would be able to pull the calf with this girl until tomorrow without panting.

"Well, it's out. Zhou Meng added: "I also handed in my graduation thesis by the way." ”

"So fast?" Liu Chi was really taken aback this time: "Really fake? You didn't fool me?"

"Of course it's true, as soon as the thesis is passed, I can get my graduation certificate, just two or three days. Zhou Meng said proudly: "No matter how you say it, you also taught it." ”

"It's not normal to be excellent, otherwise how can you be a student. ”

"I love to hear that. ”

"Hey, hey, hey!"

"It's midnight over there, don't you need to sleep?" asked Liu Chi after looking at the time.

"Well, in the middle of the night, I'll sleep in a while. ”

"Girls have to go to bed early, otherwise they will age quickly. ”

"No, I'm a young and beautiful girl. Zhou Meng said with a smile: "By the way, I will return to China in a few days, and you will have to invite me to a big dinner at that time, saying that you are a big man now." ”

"It's so-so. Liu Chi said modestly.

"Hmph, anyway, it's all up to you. ”

"Okay, are you coming back for a few days or staying for a long time?"

"Graduated... Of course, it's going back for a long time. Zhou Meng took it for granted.

"No problem, I have an empty room in my house, leave one for you. ”

"I would like to stay in a 5 star hotel. Zhou Meng said mischievously.

"......" Liu Chi directly ignored it and forcibly changed the topic: "You're back, what should your parents do?

"I don't know, I haven't told them yet, I want to wait until I get my diploma before I tell them. After Zhou Meng finished speaking, he added: "Anyway, whether I support it or not, I must go back." ”

"Communicate well, don't lose your temper, or I'll beat you. Liu Chi pretended to be your teacher.

"Got it. "Zhou Meng, I'm a good baby.

"Call me again when you've decided. ”

"Hmm!"

“......”

A week later.

Liu Chi grinned, rubbed his hands, and looked at the newly assembled motor in front of him with a smile.

Get!

Now it's time for a test flight.

After Liu Chi checked and confirmed that there was no problem, he carefully connected the electricity, checked it again, confirmed that there was no problem, and pressed the switch.

With a ...... sound, the motor sounded.

The spindle spun at high speed in an instant.

Ten minutes passed.

Works fine.

There's nothing wrong with it;

Liu Chi looked at the motor that was still working hard, and breathed a sigh of relief.

Then there will be various tests to follow.

rotational speed, vibration, centrifugal force, inertia...... The most important thing is the rotor dynamic balance, and the static balance.

Turn off the motor.

Test the vibration first:

Put the corresponding instrument on first.

Fix the motor on one side.

Define 0 degrees.

Boot......

After Liu Chi pressed the switch, he turned his gaze to the display of the balance instrument on the side.

0.5 grams!

Belch......

Liu Chi scratched his head, it seemed that he was a little far away.

If you want to reach 1UM, the spindle is only allowed to have a maximum of 0.2 grams of unbalanced residual, Liu Chi looked at the motor that was still working for a while, and then looked at the value that was motionless like an old stubborn.

It seems to be caused by the centrifugal force imbalance of the rotator.

I don't know if it's a magnetic field problem or an unbalanced rotor mass, but I have to test it slowly to know.

It's better to be okay, you can only go the right way, then slowly improve.

If you want to do it all at once, it basically doesn't exist.

If the pressure generated by the bearing is the same, then the problem arises in the rotating body with balanced rotation, but the centrifugal force should be uniform in the rotation of the rotating body at high speed......

Liu Chi touched his chin for a while:

Is it a material problem?

The material is uneven, or there are blanks, errors in processing and assembly, so that when the rotary body is rotating, the centrifugal inertia force generated by each tiny particle on it cannot cancel each other.

That would create a noticeable error.

It even causes vibrations and noise, accelerates bearing wear, and shortens the life of the machine.

......

Five minutes later, Liu Chi turned off the switch of the motor, and when the motor stopped working, he disassembled the motor and took out the rotor.

Now that it works, it's a test of the day.

Identify the problem and fix it slowly.

Anyway, there's no hurry.

Rotor balancing:

Liu Chi opened the balancer SE008, put the rotor on it, and started it......

Error 0.95!

Just 0.5 grams!

If the error is 0.95, then it should be 0.3 grams!

......

At around five o'clock in the afternoon, Ye Yuxin saw Liu Chi stop his work and interrupted busily: "The stupid man has eaten." ”

"Eat. Liu Chi returned to the truth and glanced at the time.

I'll go!

In the blink of an eye, half a day passed.

I don't think I'm doing any work.

Alas!!!

This time is so useless that it passes in the blink of an eye.

"It's almost six o'clock, it's fine, I'll continue tomorrow. ”

"Okay. Liu Chi glanced at a bunch of equipment on the workbench, it seems that it will not be able to be done for a while, let's continue tomorrow, and simply sort out the equipment.

Pack up, pack up, archive file.

Turn off the instrument.

Follow Ye Yuxin out of the laboratory.

Go home!

"Parking !!"

As soon as he left the industrial park, when he passed a small road, Liu Chi suddenly spoke.

'Squeak...' the car came to a steady stop.

"What's wrong with Liu Chi. Ye Yuxin was taken aback.

"It's fine. Liu Chi waved his hand, looking at the shadow outside the window from the glass, and the corners of his eyes couldn't help jumping.

Zhou Meng looked at the lowered glass window, took a few steps forward, walked to the car door, looked at Liu Chi in the window, blinked, beckoned his hand and said a little proudly: "Brother Chi." ”

The words written on the face: not surprised, not surprised.

Ye Yuxin heard this, and leaned his head over curiously.

A slender girl about 1.65 meters, in a white coat, and with a black hat appeared in Ye Yuxin's sight.

The jet-black green silk directly covered half of the face and hung directly on the chest.

The four words (elf girl) jumped into Ye Yuxin's mind.

"Yes, now learn to play surprises, I think you girl is underbeaten. Liu Chi came back to his senses after a few seconds, and glared at the girl with his eyes: "Get in the car." ”

"Hey, hey. Zhou Meng grimaced, and finally sat in the passenger seat obediently.

"Where's the luggage?"

"Chiba Hotel not far from Huaqing. Zhou Meng honestly buckled his seat belt this time.

"Chen Fei, go to the Chiba Hotel first. Liu Chi said to Chen Fei, who was driving.

“......”

"Daughter-in-law, let me introduce you, Zhou Meng, half of my apprentice, the 'big guy' who came back from X-Bridge University in Europe. Liu Chi introduced to Ye Yuxin, who had not spoken on the side, that when the word big guy was two, he also aggravated his words.

"Call sister-in-law. After speaking, he added three words to Zhou Meng.

"Hello sister-in-law, you are so beautiful. Zhou Meng turned his head and looked at Ye Yuxin enviously.

"Hello. Ye Yuxin nodded with a smile.

"What's the matter, I don't know how to say hello first when I come back? Can you change your personality, if something happens, how can I explain it to your parents." ”

"I call it true temperament. Zhou Meng retorted unconvinced: "What are you afraid of saying that China is not Africa, can someone sell me?"

"With your stinky temper, be careful not to find a boyfriend. ”

"Who said, although I don't have it now, there will be someone waiting for me in the future, waiting for me to meet him one day. Zhou Meng said arrogantly, with a face written: Compare the heart, compare the heart......

"King Yama. "Liu Chi's backhand is a knife.

"Poof......" Ye Yuxin on the side puffed and couldn't help laughing.

"Stinky Liu Chi, dead Liu Chi, you bully me. Zhou Meng opened his teeth and danced his claws, if it wasn't for the seat belt being tied, it is estimated that the whole person would have pounced and saw Ye Yuxin on the side: "Sister-in-law, you see this guy bullying me again." ”

"Liu Chi, you don't know how to let Sister Zhou Meng go. Ye Yuxin liked this straightforward little sister a little bit at this time.

"Let?" Liu Chi glanced at the two of them and snorted: "This girl will rub her nose and face for a while." ”

"How can anyone have it!" Zhou Meng cried out.

"You and I met you for the first day?" Liu Chi rolled his eyes.

"Humph!"

“......”

"The owner, Hotel Chiba, arrived. ”

"Uh......" Liu Chi stopped, looked out the car window, turned back to Zhou Meng and asked, "Is this here?"

"Hmm!"

"Yuxin, you wait for me here, and I'll go up with Zhou Meng to get the luggage. After Liu Chi finished speaking, he added: "You find a place to rest here, and we will come down in a while." ”

"Well, you go!" Ye Yuxin nodded.

"'Big Guy Zhou', let's go!" Liu Chi opened the car door.

"Oh!"

Ye Yuxin looked at the two people who disappeared at the door, and decided to ask the girl who suddenly appeared when she had the chance, and said to Chen Fei, who was driving: "Find a parking space and wait slowly." ”

"Okay!" Chen Fei nodded.

Chiba Hotel 706 Business Suite.

"Brother Chi, do you want to drink water?" Zhou Meng took a bottle of water from the counter and handed it to Liu Chi.

"On such a cold day, you want to freeze me to death?" Liu Chi said disdainfully, looked around the environment, felt pretty good, walked to the sofa and sat down: "How long have you been back?"

"Yesterday night. ”

"Don't call me?"

"In the middle of the night, I'm afraid you'll scold me!"

"You girl, when are you afraid that I will scold you, hurry up and clean up, your sister-in-law is waiting downstairs?" Liu Chi looked at Zhou Meng, who was standing stupidly, and urged.

"Mm-hmm, wait for me. Zhou Meng stuck out his little tongue and packed his luggage at the speed of seven or eight hands.

Ten minutes later!

Liu Chi walked out of the hotel door with an oversized suitcase, followed by a small tail carrying a bag.

When Liu Chi put away his luggage, he found that Zhou Meng, the girl, occupied the back row!

After having no choice, I could only sit in the passenger seat.

buckle up and signal Chen Fei to go.

"Brother Chi, it's my birthday in a few days, what are you going to give me?" Just when Liu Chi was in a daze, Zhou Meng patted the chair and said back.

"What do you want?" asked Liu Chi back.

"Think of your own gifts, so that you can show your sincerity. ”

"Okay, I see, I'll study and study it later. Liu Chi added a sentence after speaking: "Tomorrow I will go to Times Square to buy you a skirt." ”

"Hey, hey, hey... Why are you also a big boss with tens of billions of dollars, are you embarrassed to buy a dress? Zhou Meng pouted and said dissatisfiedly.

"Then what do you want? Okay, I'm going to buy a hair, I'm such a big guy to buy a gift for you personally, it's not sincere enough? If I change someone, I'll buy one directly on Taobao for 9 yuan and 9 free shipping." ”

"Stingy ghost, drink cold water....... Zhou Meng said for a while, seeing Liu Chi ignoring himself, busy pulling teammates: "Sister-in-law, look at Brother Chi, this has been like this since I was a child, but it is actually mine." ”

"Can you touch your conscience when you speak?" Liu Chi said disdainfully: "Can you have a face." ”

“......”

After arguing for a while, Liu Chi changed the topic and asked, "What are you going to arrange later, and will you go back?"

"I'm not going back. ”

"What about your parents, they agree?" Liu Chi asked with a frown.