Of course, Qian Yongjin could not be bluffed by Zhang Rui's rhetoric.

He decided to expose the student's attempt to evade the punishment of seven days of absenteeism in front of him in front of him in front of all the students in the class.

The first question Qian Yongjin asked was the content and steps of the CNC machine tool program, and Zhang Rui answered it fluently.

Qian Yongjin saw that Zhang Rui was not difficult to solve this question, so he immediately asked how to analyze the parts pattern and process treatment.

Zhang Rui didn't even have to think about it, and gave a more standard answer than a textbook.

Seeing that such a complex problem was not difficult for Zhang Rui, Qian Yongjin was ruthless and asked how to calculate the mathematical processing of the part diagram that he would not start teaching until his junior year.

Before Qian Yongjin finished talking about this question, Zhang Rui taught him a vivid lesson as a teacher about the calculation method of the base point coordinates, the meaning of the base point, the content of direct calculation, as well as the definition of the node and the calculation method of the node coordinates.

"I'll go! Zhang Rui, this is a course taught in the third year, and you actually can!"

"Zhang Rui, you're so awesome!"

"Damn, Zhang Rui, where is this class you said? I'm going to sign up!"

"Zhang Rui, take me and take me there! I'm going to the training class you said!"

“……”

Listening to the voices of discussion and exclamation from the male and female classmates in the class, Zhang Rui pressed his hands on the void again and again, and said loudly:

"Students, please be quiet, these questions just now Mr. Qian asked, just pediatrics, real technology, have to be the practical operation of machine tools! Mr. Qian, or let's go to the practice workshop, as long as it is a general-purpose CNC lathe, whether it is a lathe, milling machine, grinder, wire cutting, low hardness, medium hardness, high hardness, soft metal, brittle metal surface, drilling, cylindrical, grooving processing as you choose!"

"I really don't believe it!"

Qian Yongjin couldn't help but speak foully, and said loudly with a straight face: "Go! Go to the internship workshop! The whole class will go!"

As a result, all 52 male and female students in the first class of the sophomore major in mechanical manufacturing and automation of the Department of Mechanical Engineering did not even attend classes, and under the leadership of the class teacher, they chattered all the way around Zhang Rui and kept asking questions, and walked noisily towards the school-run factory all the way.

When I went downstairs, I happened to meet Li Yougen, the head teacher of the third class of the sophomore year.

"Old Qian, where are you taking the students in your class?"

"Go to the internship workshop!"

Qian Yongjin gritted his teeth and said: "There is a thorny student in our class, and I don't know where he learned some fur skills, so he actually wants to give me a problem! I have to let him know how big a difference there is between theory and practice!"

Li Yougen glanced at Zhang Rui, who was surrounded by male and female classmates, and looked at Qian Yongjin very curiously and asked, "What's the matter, let's hear it." ”

Qian Yongjin then talked about what happened in the classroom just now, and finally looked at Zhang Rui with complicated eyes, and then whispered to Li Yougen: "From the heart, this student named Zhang Rui has really learned a solid knowledge of CNC technology theory. There are some aspects that even I am ashamed of. ”

"When did you have such a top student in your class?" asked Li Yougong in surprise.

Qian Yongjin pulled Li Yougong to the side, and said in a low voice as he walked: "This kid is a little crazy, he said that all general-purpose CNC lathes, whether it is turning, milling, grinding, wire cutting, low hardness, medium hardness, high hardness, soft metal, brittle metal five kinds of materials of curved surface, drilling, cylindrical, grooving processing with me!"

"No! Since the establishment of our Jiangnan Vocational Institute, we have never produced such a comprehensive senior talent for practical processing!" Li Yougen's eyes widened, and his face was full of disbelief.

"Don't say you don't believe it, I don't believe it even more!" Qian Yongjin sighed and said: "The most exaggerated thing is that this Zhang Rui said that the theoretical knowledge he mastered, including the practical processing he said, was mastered by him in only seven days after spending 30,000 yuan to participate in an intensive training class!"

"Do you think this is possible?" said Li Yougong.

Qian Yongjin shook his head and was speechless.

"The students in our class are taking an internship class at this time, and I will go with you to see if this student named Zhang Rui has real skills. Li Yougong was obviously aroused by Qian Yongjin's strong curiosity.

The internship workshop is a teaching workshop specially set up by Jiangnan Vocational College Machinery Factory for students to practice.

Two horizontal CNC lathes and vertical CNC milling machines are neatly lined up in two columns, and there are two wire cutting machines and CNC grinders at the inner end. It's just that it's all domestic low-end bargains.

The school-run machinery factory specially hired two senior technicians in their forties to serve as full-time intern teachers.

At this moment, the two intern teachers are walking back and forth in the middle aisle with their hands behind their backs, one left and one right, correcting the wrong operation steps of the students who operate on the computer from time to time.

Seeing Qian Yongjin and Li Yougen coming in with a group of students, the two intern teachers were stunned.

"Teacher Qian, who are you?" asked the middle-aged intern teacher with a little gray hair near the door of the internship workshop.

"Mr. Guo, there is a student in my class, he has a very loud voice, he claims that he has mastered the practical processing of all general-purpose CNC lathes, and there are no general-purpose parts that he can't process. ”

Qian Yongjin explained, walked to the student pile and pulled Zhang Rui out, and said seriously: "It's him, called Zhang Rui." I'm going to see if he's bragging, or if he's the real thing!"

"Zhang Rui, this student, I know. ”

Teacher Guo glanced at Zhang Rui, nodded and said, "He has the best internship performance in his sophomore class." And in my impression, he is more modest and studious, and he never knows how to pretend to understand. Teacher Qian, is there any misunderstanding between you teachers and students?"

Zhang Rui didn't wait for Qian Yongjin to answer, and then said, "Teacher Guo, I have no misunderstanding with Teacher Qian. What Mr. Qian just said is indeed what I said. I came to the internship workshop today for only one purpose, which is to let everyone see clearly that the knowledge and skills that I Zhang Rui have learned in the past week have far reached the standard of national intermediate vocational qualifications!"

Teacher Guo stared at Zhang Rui with a serious expression for a few moments, then nodded and said, "I'll give you this opportunity to prove yourself!"

In the next time, it was the turn of the two intern teachers to take turns to give Zhang Rui practical processing questions.

These questions basically include the basic operation and processing of CNC lathes, milling machines and wire cutting.

From the moment Zhang Rui began to contact the bed, the whole person reversed his previous appearance and became serious, meticulous, focused, and meticulous.

The proficiency in the use of machine tools, fixtures and tools made the two intern teachers who were staring on the side nod their heads with approval and appreciation.

"If I hadn't known him, I would have thought that Zhang Rui was an old technician with many years of work experience. Mr. Guo was obviously quite satisfied with Zhang Rui's performance.

"Ladies and gentlemen, please pay attention to all the details of Zhang Rui's operation on the machine!"

The trainee teacher, surnamed Xiong, explained very carefully on the spot: "Details are an important factor in measuring a qualified technician. I can say with complete responsibility that Zhang Rui's practical level has surpassed the level of a junior technician!"

"Damn! Zhang Rui is really not bragging!"

"Oh my God! He's really that good! Is he really just going to be in that training class for seven days?"

"It's a slap in the face, this is a slap in the face of Hongguoguo!"

"I've decided! The training class that Zhang Rui said, I'll decide!"

"Maybe he just accepted the benefits of that training class and came to our school to advertise, I think everyone should be cautious and not be easily deceived. ”

"Liu Xiaobin, you are a typical conspiracy theory, I don't look at you for your stinky virtue that can't see the good of others!"

"That is, whether it is seven days or not, even if it is seventy days, if you can learn Zhang Rui's level, that training class is definitely not ordinary!"

“……”

In the envy, red-eyedness, admiration, jealousy, and questioning of the students at the scene, Zhang Rui quickly milled out the surface of the T10 material that Mr. Guo asked him to finish milling, handed it to Mr. Guo with both hands, and said confidently:

"Many people can do it, the key is whether the accuracy of the processing can be up to standard. Mr. Guo, please test!"