God-level Xueba system

Shock!

Absolute shock!
It is understandable that Yan Xin's parents did not know Dragon Science Academy.

But if the intellectuals in front of him don't know where the Dragon Science Academy is, Yan Xin thinks they can retire!

"This is." The principal tremblingly picked up the letter on the table.

Invitation letter from Dragon Academy!

"That's right! The reason why I didn't go to Qingbei University is because I have a place worth going to!" Yan Xin looked coldly at the teacher who was still mocking her just now.

All the teachers looked at each other in silence.

Talking too much now will only embarrass myself even more!
They never expected that the high school student in front of them would actually get an invitation letter from Dragon Science Academy!

Director Giao walked out of the conference room after being dazed for a moment.

He needs to breathe.

This kid's words are too stimulating, and he doesn't give people a chance to breathe at all!

"Yan Xin, how did you receive the invitation letter from the Academy of Dragon Sciences?" Feng Guode was naturally also very excited, after all, his student was directly admitted by the Academy of Dragon Sciences before he even went to college.

"Because I wrote a review and published it in the journal of Dragon Science Academy!"

review.

This word must be familiar to all the teachers here, but how did this kid write it?

He is just a high school student!
"What aspect of the review did you write?"

"That's right! What's the content?"

"Someone wrote it for him, right? There are quite a few people who write papers for him these days!"

Seeing that the teachers were still skeptical, Yan Xin turned to the principal and asked, "Principal, I see that the teachers are still not convinced, how about I go to the front and prove myself?"

Yan Xin still respects the principal, after all, the principal has been thinking of himself since yesterday, including Director Giao and Feng Guode.

It is natural to ask the principal for instructions on such matters.

"it is good!"

The headmaster smiled gratifiedly.

Yesterday the principal was still worried about Yan Xin giving up his admission qualification, but looking at the invitation letter from Dragon Science Academy in front of him, he decided to let Yan Xin talk about it.

Although I didn't show it on the surface, I still didn't believe it in my heart.

Yan Xin walked to the podium confidently.

"Teachers, I don't know if you understand high-entropy alloys and transition metals?"

Chinese teacher, English teacher, etc. These liberal arts teachers naturally shook their heads in doubt.

But some physics teachers and chemistry teachers shook their heads in disdain. Although these knowledge points were only briefly explained in high school, they are more or less popular in normal universities.

But that's just a superficial meaning.

These teachers are not postgraduates, so naturally they don't know much.

"I wrote this review mainly on high-entropy alloy coatings and transition metal nitride coatings!"

"At present, there are many researches on high-entropy alloy coatings in the world, but the research on performance is still too limited, and some shortcomings are difficult to overcome."

"However, if combined with the transition metal nitride coating, the shortcomings of the high-entropy alloy coating will be made up for. But now I think many reviews are not perfect, so I wrote a review based on my own opinion."

The teachers present were dumbfounded!
They're all just undergraduates!
But what Yan Xin talked about is basically the knowledge of graduate students!
Except for the principal who graduated from the Department of Materials, everyone else in the audience was stunned.

"Student Yan Xin, can you explain what coating is?" At this time, the chemistry teacher of Class [-] stood up.

The current situation is very embarrassing!
Yan Xin always feels that she is a teacher now, and the teacher has become a student!

Is this a role reversal?

I turned to teach the teacher?
"The so-called coating is the covering applied to the surface of the substrate, just like the mobile phone we use, the surface should be covered with a mobile phone film!"

"Then how is this thing made? Is it like a cell phone film?"

Yan Xin rolled his eyes.

This chemistry teacher seems a little ignorant for asking this question.
"Of course not! There are two basic coating methods: one is PVD technology and the other is CVD technology!"

All the teachers scratched their heads in confusion.

"PVD is Physical Vapor Deposition. It means that under vacuum conditions, using physical methods, the target material, that is, the raw material of the coating, is vaporized into gaseous atoms, molecules or partially ionized into ions, and passed through the plasma, generally argon Gas, the technology of depositing a thin film with a certain special function on the surface of the substrate. Physical vapor deposition is divided into vacuum evaporation, sputtering coating, arc plasma plating, ion coating, and molecular beam epitaxy. It is the most important method for preparing coatings today. The main method of the material!"

"Then CVD is chemical vapor deposition?" Feng Guode said with a smile.

Yan Xin nodded: "Chemical vapor deposition is mainly a method of using one or several gas-phase compounds or simple substances containing thin film elements to perform chemical reactions on the surface of a substrate to form a thin film. Chemical vapor deposition has become a new method of inorganic synthesis chemistry. A new field. There is still a certain gap with physical vapor deposition!"

All the teachers looked at Yan Xin's wow-wah explanation in surprise, and they had long forgotten that they had mocked this boy just now!
After Yan Xin finished explaining, she calmly took some water from the water dispenser.

But I'm exhausted!

"Son, that's right!" Although the headmaster understood, he also half-understood many things.

But it is not difficult to see that Yan Xin's these are real talents, not just pretending to be coercive.

"So, teachers, do you still think it was a wrong choice for me to give up Tsingbei University?"

The principal shook his head helplessly.

Although Yan Xin is very good, his competition results are really good. If he gives up the recommendation quota of Qingbei University, it will be okay in Yanshi No. [-] Middle School.

But what about Qingbei University?
That's hard to explain!
If at that time Qingbei University sent someone to review the recommended students and found that Yan Xin had given up the qualification for recommendation, he would probably be shocked, and would definitely ask the school for an explanation!

But the headmaster thinks it doesn't matter anymore.

Yan Xin's future is what matters!

"I am completely convinced!"

"This kid's future is boundless. Although I half-understand what he said, many words are very similar to what my previous undergraduate tutor said!"

"Yan Xin is really a rare genius boy!"

"Hey! Just now I mocked him for being ignorant of current affairs, it seems that I am short-sighted!"

"What a shame!"

All the teachers were praising Yan Xin, while some teachers began to feel guilty for their words and deeds just now.

Yan Xin is not a person who is ignorant of current affairs. She bowed deeply on the stage, and then received warm applause from the teachers in the audience!

"As expected of a boy born from a hero! Yan Xin, go and study! Now that the explanation is clear, we will handle the rest by ourselves!" the principal said with a smile.

"Thank you, Principal! There is one more thing I want to say." Yan Xin felt that this matter was a little too much, but he had to do it now.

"you say!"

"I don't want to come to school recently, for fear of causing unnecessary trouble! I just happen to be at home preparing for the Dragon Science Academy's assessment, do you think it's okay?"

"Of course! You are now a researcher at the 'preparatory level' Academy of Dragon Sciences! What's the use of learning these things in high school again? Go!" The principal smiled gratifiedly.

"Thank you!"

After Yan Xin bowed again, she left the meeting room.