Liuyun stared at Wu Dalei with a smile: "How can you see it?" ”

Wu Dalei looked up at Liuyun: "Recently, there has been a small news in Yongcheng that the college entrance examination, which has been interrupted for more than ten years, is about to resume. ”

Liuyun sighed: "Can the grapevine be reliable?" ”

"The grapevine is too reliable, but ......" Wu Dalei shook his head, "The college entrance examination is much more reliable than recommending to go to college, just like it is more reliable to finish the scientific examination than to raise filial piety." ”

"That's right." Liuyun nodded.

"What about you?"

Seeing Wu Dalei staring at him, Liuyun nodded with a smile: "Maybe, thousands of troops crossed the single-plank bridge, this kind of excitement, how can you not make up for it?" ”

"That's pretty much it!" Wu Dalei nodded, "What about Chen Ning?" ”

"My brother has never liked to study, so he should stay in the factory!"

Wu Dalei breathed a sigh of relief: "That's good!" ”

Say Cao Cao, Cao Cao has arrived.

"Old ......"

Hearing someone shouting about himself, Liuyun turned around and found that his eldest brother Chen Ning was walking out of the examination workshop with a swagger of steps that his six relatives did not recognize......

As soon as he saw Chen Ning's arrogant posture, Wu Dalei knew: This wave is stable!

"Boss, guess how I did on the exam?"

"I don't want to guess," Liuyun glanced at Chen Ning, "However, if you can't get by, you'll be a little sorry for me!" ”

"How can it," Chen Ning laughed, "It must have passed!" ”

"That's pretty much it!"

"That ......"

"Come back!"

Three days later, Liuyun returned to the island with the fishing boat contracted by the factory. When he arrived at the door of his house, Liuyun knocked on the door for a long time before knocking......

It was Chen Yang who opened the door, and when he saw Liuyun at the door, he just nodded and returned to the room.

It didn't take long for Chen Zheng, who was holding a textbook in his hand, to lean out of the room: "Boss? ”

"The eldest sister, the third sister, and the fourth sister," Liuyun walked to the door weakly and shouted into the room, "I brought some specialties back from Hu Jian's side!" ”

"Don't eat it!" It was the third sister Chen Jing who replied.

"Then I'll wipe them all out?"

"Wait!"

As soon as the words fell, Chen Jingzhuan came out of the room with his slippers, and after seeing Liu Yun, he smiled and teased: "Boss, you have been on this business trip, the time is long enough, the fourth child has graduated from high school!" ”

"I can't help it," Liuyun sighed with a smile, "Who makes the party and the people need!" ”

After speaking, Liuyun opened his backpack, took out a large bag of Hu Jian's snacks from it, and put it on the table......

Seeing the pink and lovely orange cake on the table, Chen Jing didn't care about the review task, so she grabbed a piece and stuffed it into her mouth......

"Well, it's delicious!"

After chewing a few times, Chen Jing's eyes lit up, and she reached out and grabbed a few more pieces from the paper bag......

may have found that his eating appearance was a bit miserable, Chen Jing pushed the dim sum on the table to Liuyun: "Boss, you eat too!" ”

Liuyun smiled and shook his head: "No need, I'm eating over there every day." ”

"That's right, third sister," Liuyun looked up at Chen Jing, who was gobbling up, "You three are ...... at home."

Chen Jing took a sip of water, pressed down the dim sum, took a breath, and then replied with a smile: "Now there are rumors in the streets and alleys that the college entrance examination is going to be resumed, so my mother asked the three of us to review it first, by the way, if the college entrance examination is really resumed, will you participate?" ”

"Let's have some fun!" Liuyun smiled and nodded.

"Then I'm relieved!" Chen Jing breathed a sigh of relief, "With you to review with us, it feels more down-to-earth." ”

"Sister," Liuyun was directly speechless, "Thousands of troops cross the single-plank bridge, one more person will have one less chance!" ”

Chen Jing was stunned......

At this moment, the eldest sister Chen Zheng came out of the room and stared at the stunned Chen Jing with a smile: "Third child, are you really stupid or fake stupid?" ”

Chen Jing was a little confused: "What's wrong?" ”

"The old man scared you!" Chen Zheng picked up a piece of dim sum casually and took a small bite, "With the level of the old man, I can't get a full score, it's almost the same." One more of him is not more, less of him is not less! ”

Chen Jing suddenly realized, turned around, and glared at Liuyun angrily: "Boss, you can do it!" ”

Under Chen Jing's coercion, Liuyun was forced to sign a series of unequal agreements......

After a while, the sisters went back to their rooms to review their homework, and before leaving the living room, the eldest sister gave Liuyun a difficult task: to provide nutritional support for his older siblings who were preparing for the exam......

After lunch, Liuyun followed Chen Ning back to the factory to sell the leave, and then began to prepare to train his eldest brother Chen Ning to become an eighth-level worker.

Because of the three years of work, he has been exposed to a large number of workpieces, coupled with talent and special training, Chen Ning can surpass most of the old workers in the factory in a short period of time.

Moreover, it is only a matter of time before the seventh-level workers to the eighth-level workers, but the products of the overhaul plant determine that the overhaul plant workers are only at the level of the middle and lower reaches of the country's eighth-level workers: the parts of the peripheral processing plants of the air force and aerospace systems, and the starting point is the level of the compressors of the overhaul plant......

Fortunately, Chen Ning's results in three-dimensional geometry and calculus are good, and with the intervention of Liuyun, he usually comes into contact with three-dimensional surfaces with complex shapes.

Therefore, in order to pull out the seedlings and help them grow, Liuyun decided to give birth to multi-axis linkage CNC machine tools......

In fact, multi-axis linkage CNC machine tools are ordinary machine tools with control chips, analytical circuits and multiple servo motors.

The control chip is used to control the coordinated operation of a plurality of servo motors, and then the signal of the control chip is converted into the control signal of the servo motor by the analytical circuit, and finally, the spindle of the machine tool controlled by the servo motor controls the three-dimensional motion of the tool or workpiece......

Machine tools, Liuyun has a way, the control chip and analysis circuit are not a problem, the most troublesome is the servo motor: because this thing will be born in Germany next year.

Liuyun, who is in arrears, has no ability to make servo motors at this stage: the core part of servo motors, permanent magnets, is still just a legend in China......

CNC machine tools without servo motors, both machining accuracy and processing efficiency, are far lower than those with servo motors.

However, Liuyun has no choice but to take the existing old-fashioned motor in the factory and make up for it, and design the circuit by himself, as for the chip, he can only buy it by himself and burn the program himself......

It took several days for Liuyun to design the framework and program of the five-axis linkage machine. Then, in the name of testing, Liuyun applied to the factory for a large horizontal milling machine. The reason for the large milling machine is simple: such a large one can withstand the extra weight added by the modification.

Wu Dalei, who received the application, waved his hand and threw an elderly Su Xiu "old man" in the factory to Liuyun......

Just when Liuyun was refitting the machine tool in full swing, Chen Ning, a newly established seventh-level worker, was holding the lesson plan given by Liuyun and studying hard, and in a few days, he would replace Liuyun and take the podium......