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"Since that's the case, I won't bother Professor Wang and Fang Gong anymore. I'll come back when I'm off work."

Li Li is an office administrator who doesn't know much about equipment, so she got up and left after seeing this.

After Li Li left, Professor Wang began to introduce the plasma spectrometer.

Professor Wang is indeed a professor who has done a lot of in-depth research on instrumental analysis. From time to time, he pops out relatively cutting-edge professional terms. Professor Wang did not specifically elaborate on these relatively cutting-edge professional terms. Words are very common and common, and they disdain and explain too much. In addition, there is also a common problem of literati "showing off".

Fang Qingshu, who had just graduated less than a year ago, would probably be ignorant and unable to keep up with Professor Wang's lecture rhythm, but now Fang Qingshu not only has incomparable wisdom and memory, but also has been fine for the past few months. Just surf the web every day.To his ears, Professor Wang's lectures seemed concise and to the point, without any nonsense, quite teachable. [

Professor Wang showed off a little bit, seeing that Fang Qingshu was silent and nodding repeatedly, it seemed that he, a professor, had no connotation and couldn't say anything profound.

"Xiao Fang, if you don't understand something, you can ask as much as you can, don't be shy." Halfway through the speech, Professor Wang finally couldn't help but speak.

"Teacher Wang explained it very thoroughly, and I can understand it." Fang Qingshu replied with a smile.

Professor Wang was a little unhappy when he heard this, and thought to himself, even those masters and doctors who have already participated in the training here cannot understand a lot of things I am talking about. You, an undergraduate who has just graduated for a year, are not ashamed. , I really don’t know how to pretend to understand, and I’m so exaggerated.

"Oh, the current full-spectrum direct-reading plasma spectrometer uses ccd and cid more detectors, and Leman uses cid, so can you talk about the advantages and disadvantages of cid and ccd detectors?" Professor Wang asked with some displeasure.

Fang Qingshu nodded and replied calmly: "Charge-coupled device ccd is... but local ccds have charge overflow phenomenon, and generally rely on signal processing circuits to solve the overflow problem of detectors, which is destructive readout. Charge injection device cid is... ...belongs to non-destructive readout, but the quantum efficiency, dark current level, and reading noise are not as good as ccd. For the shortcomings of ccd destructive readout, segmental coupling can be used to improve..."

Fang Qingshu not only clearly explained and analyzed the working principles, advantages and disadvantages of the two detectors, but also put forward suggestions on improving and solving these shortcomings in current cutting-edge research papers.

After hearing this, Professor Wang was very surprised. Fang Qingshu, an undergraduate student who had just graduated for a year, immediately looked at Fang Qingshu with admiration. Eat so thoroughly."

Fang Qingshu smiled faintly, and did not show even a little complacency because of Professor Wang's praise. This made Professor Wang appreciate Fang Qingshu even more, and unconsciously began to look at him as a peer.

Next, Professor Wang talked about the optical principles of the instrument. Seeing that Fang Qingshu basically understood everything, he stopped talking about it in depth and asked Fang Qingshu to follow his master student Xiao Bi to operate the machine.

An afternoon is not long or short, but for Fang Qingshu, who has solid theoretical knowledge and strong hands-on comprehension ability, it is enough for him to master the basic operation of plasma spectrometer, even spectral line interference, selection, instrument Even Fang Qingshu, who was optimized, was able to put forward some correct opinions.

This made Xiao Bi, who brought Fang Qingshu on the plane, very ashamed. Later, he was quite restrained, for fear that Fang Qingshu would laugh at him if he made a mistake.

During this period, Professor Wang also came two or three times. Every time he saw Fang Qingshu skillfully helping Xiaobi to test the samples, while Xiaobi was idling, he was very surprised. I really doubted that Fang Qingshu had used a plasma spectrometer before.

"Xiao Fang, I think you will be able to move around freely after another day of computer training tomorrow." When Professor Wang came to see the work progress here for the last time, he couldn't help but take pictures when he saw Fang Qingshu's skillful selection of spectral lines and deducting the background. He patted Fang Qingshu on the shoulder and said.

Fang Qingshu turned around and smiled and said: "Playing is not an important thing, you can do it anytime, but it's not easy to come to your place. You have a lot of high-end equipment here, if you don't mind, I would like to learn everything."

"You young man is quite ambitious, okay, as long as you want to learn, you can follow my students, and they can just relax with you, and get addicted to the teacher by the way." Professor Wang appreciates Fang Qingshu's self-motivation. The young man readily agreed.

"Then I really want to thank you. I'll treat you and this classmate Bi to dinner tonight." Fang Qingshu patted Xiao Bi's shoulder with a smile and said.

Although Fang Qingshu looks like a college student at a young age, his every move is so natural, without any restraint, as if he is not facing a professor of Tsinghua University, but an ordinary colleague.This made Professor Wang always feel that something was wrong, but he couldn't tell, as if things were supposed to be like this.

"Hehe, if you have the opportunity to come to Hanglin in the future, please invite me again. In the past few days, Mr. Wang please, he just happened to be in Beijing today, and he promised to come with Xiao Li later." Professor Wang laughed. [

Mr. Wang is the agent of Liman Company in China. When talking about cooperation, he visited the Institute of Geology and Mining and visited their laboratory. Fang Qingshu met him once, and he still has an impression. The staff must not be impressed.

Seeing what Professor Wang said, Fang Qingshu stopped insisting.

When it was time to get off work, Xiaoli and Mr. Wang came to the laboratory together.

Mr. Wang obviously came to the laboratory often. After entering, he first shook hands with Professor Wang and greeted him warmly, then patted Xiao Bi's shoulder affectionately, and finally turned his gaze to Fang Qingshu, stretched out his hand and said with a smile: "You should be Fang Gong, right?" , as expected, you are young and promising, and you will need a lot of help in the development of the market in Zhejiang Hai Province in the future."

Fang Qingshu shook hands with Mr. Wang. He could see that Mr. Wang was insincere, and he could also see that Mr. Wang didn't think much of him. The main purpose of going out this time should be to have more emotional exchanges with Professor Wang. And his coming was just an excuse.

Sure enough, before getting off work, Mr. Wang kept taking the initiative to find topics to chat with Professor Wang, but occasionally chatted with Fang Qingshu casually to take care of the situation.Professor Wang was afraid that Fang Qingshu would be left out in the cold, so he would bring him in for a chat from time to time.

Mr. Wang's demeaning and hypocritical style made Fang Qingshu very unhappy. If he hadn't taken into account Professor Wang's face and the future cooperation between the unit and Liman Company, Fang Qingshu would have left in a huff.