After Wu He left, Xu Wenxiu immediately picked up Liu Lang and kept touching his arms and thighs.
"Son, are you really okay?"
Professors and deans are all outsiders in Xu Wenxiu's eyes, and only her son is the most important. She almost fainted when she heard Liu Lang fainted. Even though her son seemed to be alive and kicking now, she was still worried.
"Mom, it's okay, it's okay. I was too concentrated in class today and sat motionless for more than three hours. Even an adult wouldn't be able to bear it. I just need to eat some food in the hospital."
"That's good, that's good. I was scared to death just now. What will I do if something happens to you?"
Thinking about it just now, Xu Wenxiu was really scared.
"Okay, Mom, you haven't eaten yet. You go to eat first. I still have some homework to do!"
"I'll fry some eggs later. It's your time to grow, so you must eat more."
Since Liu Lang fainted from hunger, Xu Wenxiu should cook more.
"Well, okay, I'm a little hungry again!"
When it came to eating, Liu Lang's stomach growled a little, and it seemed that all the food he had just eaten was basically consumed.
While his mother went to cook, Liu Lang sat at the desk, spread out a piece of white paper, picked up a pen and a ruler and started drawing on the paper.
Half an hour later, Liu Lang vividly drew a machine tool. This lathe was not a complete machine, but a machine that was split into more than 20 parts. Each part was marked with its location in the machine tool.
The positions were also marked with dimensions. Some had an inner diameter of one centimeter, and some had a length of ten centimeters. These were all recalled by Liu Lang.
"Son, come on, let's eat first!"
Xu Wenxiu served the steaming meal.
"Have a meal!"
Liu Lang put down his pen and ate with his mother. Seeing his son devouring the food, Xu Wenxiu was completely relieved.
"Mom, you go to bed first. I will rest after I finish my homework."
"No, you are just fine. You can't study like this anymore. You must sleep well during this period!"
Xu Wenxiu's face sank and she said to her son.
"I still have homework to do!"
"Then I will find your teacher tomorrow and ask him not to leave any more homework. He will definitely listen to me!"
"this……!"
Xu Wenxiu was determined to ask Liu Lang to rest early, but Liu Lang had no choice.
"Well, it's seven o'clock now. I'll go to bed at half past nine, okay?"
Liu Lang usually has to study until after ten o'clock in the evening, sometimes it is almost eleven o'clock.
"No, you can only study until eight o'clock, and you have to go to bed at eight-thirty at most."
"This is too early!"
"Is it still early? Look at the neighbors. Most of them go to bed at nine o'clock. Whose children study until midnight like you? It's this problem that makes you tired. If you don't change it, I will go to Principal Zhao Tianming.
, let him control you!"
"Okay, okay, then I'll go to bed at half past eight!"
Liu Lang couldn't help but his mother finally agreed.
"Hurry up and draw!"
Liu Lang sat at the table again and began to draw.
"Okay, it's eight o'clock, go to bed!"
Mother's voice sounded again.
"What? So fast?"
Liu Lang still lacked more than twenty parts, and it seemed to him that only a few minutes had passed.
"Mom, it's half past eight, it's over at half past eight!"
Liu Lang glanced at his watch and said immediately.
"It's half past eight, go to bed!"
Liu Lang's mother walked to the table.
"Only one is missing, just one is missing!"
Finally, when Xu Wenxiu was about to take away the piece of paper, Liu Lang completed the exploded view of a machine tool. There were a total of one hundred and fifteen parts. Each one indicated its position and dimensions. The position was absolutely clear.
Correct, but the size was roughly calculated by Liu Lang, and the error should be within half a centimeter.
"Okay, wash your face and feet!"
Seeing that Liu Lang was quite straightforward, Xu Wenxiu nodded and brought the hot water basin over. Liu Lang washed his face and feet, and then fell on his bed. He was indeed very tired.
After a while, he fell asleep. Xu Wenxiu came over and covered his son with a quilt, then turned and returned to his room.
The next day everything was as usual. Liu Lang got up at seven o'clock and went to the cafeteria with his mother for breakfast, and then went to the dormitory to find Jun Song and others to go to school with. Jun Song and the others asked for a long time, and only after seeing that Liu Lang was indeed fine
Agree with him to go to class.
At the end of the first class, Liu Lang ran to another classroom. Xiong Huaizhi happened to be finishing get out of class as well. When he saw Liu Lang, he hurried over to ask.
"Liu Lang, are you okay?"
"Professor Xiong, this is the exploded view of the machine tool I drew last night. Check to see if there are any mistakes!"
Liu Lang handed the piece of paper to the other party.
"Exploded view? What exploded view...!"
Xiong Huaizhi just took one look and his expression suddenly changed. His arms loosened and the books he was holding fell to the ground.
"This...is this what you drew?"
Xiong Huaizhi ignored the book that fell on the ground and looked at Liu Lang as if he had seen a ghost and asked.
"Yes! I spent more than an hour drawing it last night. Professor, can you see if there are any mistakes?"
"The position of the parts is completely correct, the shape is also correct, and the size...I don't know all the dimensions...!"
That's right, even Xiong Huaizhi can't know the size of every part!
At this moment, Xiong Huaizhi was extremely shocked. He only looked at it once and wrote down all the parts of the machine tool. Even though there were not many parts in this machine tool, there were only more than a hundred. It was considered the simplest machine tool, but these more than a hundred parts
The parts are not all the same. There are circles, squares, ovals, triangles, prismatics, and many special shapes. There are more than 20 types in terms of shape alone, and there are also more than 10 different sizes.
.
Xiong Huaizhi can also do this, but he can only do it after several or even more than ten years of working in the machine tool room every day and becoming familiar with all their parts to the point where he can no longer be familiar with them. Liu Lang yesterday
He only watched for three hours, and then accurately drew all these parts in more than an hour. This skill was unheard of in him.
"Did you really draw this from memory after the lab class yesterday?"
Xiong Huaizhi asked.
"Yes! Not only this machine tool, I also wrote down the disassembly of another machine tool. I can draw it completely, but I was too tired last night and didn't have time to draw it."
Liu Lang actually memorized all four machine tools, but cut them in half in order to be less arrogant.
"What? You wrote down the entire disassembly process of the two machine tools? You didn't fool me, did you?"
One machine tool shocked Xiong Huaizhi, and two machine tools made him "stunned". Xiong Huaizhi's head was dizzy at this time, and it seemed unreal to Liu Lang.
"Do you have classes soon?"
Xiong Huaizhi asked.
"There is a class on Maze, but I've never taken it."
Liu Lang replied.
"Do you still need that kind of class with your memory? Come on, follow me back to the office."
Xiong Huaizhi took Liu Lang to his office.
"Now draw me the structure of another machine tool."
Xiong Huaizhi handed Liu Lang a pen and paper.
Liu Lang didn't waste any time and started drawing on paper.
This time Liu Lang just drew a sketch of the main body of a disassembled machine tool, and then marked the parts at various locations. After just drawing a dozen parts, Xiong Huaizhi confirmed that what he said was true, and Liu Lang was indeed
I recorded the entire three-hour process yesterday in my mind.
"Okay Liu Lang, you don't have to draw anymore, you... you... you are better than me!"
Xiong Huaizhi smiled and patted Liu Lang on the shoulder. This was the first time Liu Lang saw Xiong Huaizhi smile, as kindly as an old man seeing his own child.