Xu Zhan outside the data room didn't know what happened after Feng Shaojun returned to 1979, but just looked at the restored data room and opened his mouth wide and thought about life.

Song Qinghui saw that he was stunned there, and felt strange, so he also came to his side and looked inside the crack in the door, wondering what had happened inside, so that Xu Zhan had been in a daze here.

Feeling his approach, Xu Zhan hurriedly retreated, and tightened the door, and subconsciously dragged two more handfuls to confirm that the door was indeed closed.

"Didn't you say you wanted to take something, why did you come out without taking anything?" Song Qinghui looked at Xu Zhan with a look of disbelief, thinking that he was just bored. It's so secretive, it's just trying to cover it up.

At this moment, there was a voice downstairs, it was the bigwigs in the lecture hall who had come to visit the laboratory. Song Qinghui hurriedly pulled Xu Zhan downstairs.

Compared to standing on the stage of the lecture hall, the pressure of facing a group of bigwigs is simply doubled. Xu Zhan controlled the tension in his heart, and finally showed a smile on his face and stepped forward with Song Qinghui.

Since Xu Zhan is still a student, Song Qinghui is still the nominal person in charge. But everyone understands that in fact, Xu Zhan has absolute weight in this project.

The two shook hands with the bigwigs one by one, expressed their welcome, and led them into the laboratory while being polite.

The assistant Zhang Shaojie had already begun the experiment with the researchers and students, and the only sound in the entire laboratory was their whispered conversation and the gentle collision of glass instruments. The visitors were also afraid of disturbing everyone's work, so they didn't communicate much, just quietly observed the experiment.

Xu Zhan secretly breathed a sigh of relief, thanking the bigwigs for their silence.

In any case, the fewer problems the better, after all, he really doesn't understand anything now.

The group walked up to a girl and watched her operation. The girl was extracting phyllin, she was a novice who had just joined the laboratory, and she was surrounded by so many people at once, her heart was nervous, her mind was blank, and she forgot how much extract to add for a while. Stiffness is there, and the best time to react is missed.

Zhang Shaojie was anxious to see on the side, and it was difficult to squeeze out the bigwigs to come over to help. Song Qinghui was listening to a big guy talking to him, and although he noticed the situation here, it was not easy to get out. The girl's face turned pale with anxiety, cold sweat broke out on her forehead, and her hands began to tremble.

If I don't go over to help at this time, will I be suspected of not being me, and then I will be kicked back to the original world? Xu Zhan gritted his teeth, walked over, put on gloves and took the instrument from her hand.

"Didn't you have breakfast, did you? Let's go down and rest. Xu Zhan gave the girl a step down and asked her to leave, and the girl hurriedly cast a grateful look at Xu Zhan and quickly left the laboratory.

Xu Zhan faced a table of bottles and cans, feeling that he was asking for hardship.

How to use a separating funnel, that is already the knowledge of junior high school and high school, how can he remember. Although he and his uncle agreed to enter the university laboratory when he was a child, he studied and came into contact with physics at that time, and he had almost forgotten about this kind of chemistry-related experimental equipment, even the most basic separating funnel.

The adult college entrance examination is all in a box, and at most it will only test some things in the experimental manual. The equipment drawn in black and white stick figures is too different from the real thing, Xu Zhan stared at the glass instruments for a while before matching the pictures in his impression with the real thing.

Xu Zhan picked up the test tube, which was already a little unfamiliar, and sighed secretly, in fact, he was very bottomless in his heart, but what could he do, of course he could only do it.

The leak detection of the separating funnel has been done before, and Xu Zhan can use it directly now.

Hold the funnel ball with the mouth of the tiger with your left hand, rotate the piston to add the solvent and extractant containing phyllophyllin to the separating funnel, close the small groove of the piston and the small hole on the side of the funnel mouth, and shake.

He carefully placed the dispensing funnel on a rack and watched as the liquid began to slowly re-stratify. Once there is significant stratification of the liquid, the liquid is discharged.

Xu Zhan was secretly glad that he still had a little impression of these operations, otherwise he wouldn't be able to do even such a basic operation, but he really had to laugh and be generous.

After appreciating the smooth operation of Xu Zhan, the visitors looked at the solvent with good condition, and asked with satisfaction: "How many times has this been extracted, and to what extent will it begin to crystallize?"

It will take a few more extractions to complete, and he has just seen what concentration he wants, but he forgot it in a hurry!

Xu Zhan wanted not to report the number casually, but as soon as his mouth opened, the familiar sense of inclination struck again. Several bigwigs shouted in horror in their native languages. Xu Zhan grabbed the experimental table to stabilize his body, and looked at their panicked appearance, and his mind was in chaos.

Is this also off track?Xu Zhan frowned.

The girl's experiment notebook just now slid down the crooked desktop to Xu Zhan's hand. He glanced at it, and the number of experiments was clearly recorded.

"3!" he said hurriedly.

The tilt came to an abrupt end, and all the people fleeing in a panic and the instruments that had fallen to the ground were still in the air, and they all slowly returned to their original positions as if they were being pulled by some force. The only remaining conscious Xu Zhan could only use his best strength to grab the experimental table, waiting for the time to pass a little bit and everything in the world to return to its original state.

When all the dust settled, the big coffee didn't seem to remember the existence of the tilt at all, and only saw a half-squatting Xu Zhan holding the experimental table in a strange posture.

"Xu, what's wrong with you?" said a blonde, blue-eyed American professor with surprised concern in Chinese, whose pronunciation is not very standard.

When Xu Zhan heard what he said, he realized that the tilt of the world had disappeared.

Damn, he even remembers to help the reagent bottle back to its original position, why don't you help him, a big living person, back to its original position by the way? Will he still need to climb back to his original position when he encounters such a situation in the future? If something happens to him while he is on the stairs and he accidentally falls, will he have to roll back by himself?

Xu Zhan hurriedly stood up, patted his white coat a little embarrassed, and coughed dryly: "I'm sorry, something fell just now, I went to look for it." ”

Did something fall? Several big names looked at each other and shook their heads to indicate that they didn't see it.

It's embarrassing that the cancer is about to attack.

Xu Zhan hurriedly took a deep breath to calm himself down, grabbed the notebook left by the girl on the table, picked up the pen and added a few strokes, took the opportunity to quickly glance at the content, and then replied vaguely half-truthfully: "This is the third extraction, because we have relatively high requirements for the purity of phyllophyllin crystals, so the steps will be more complicated than ordinary experiments." ”

He was really not familiar with the next thing, but the crystallization involved some physical aspects, Xu Zhan looked at it a few more times, but he still remembered it. While talking about the topic of crystallization, they simply pulled the content to the crystallization technology they are currently using.

After all, he was engaged in physics before, and it is no problem to talk about the crystallization kinetics and thermodynamics used in crystallization.

Xu Zhan's explanation is getting smoother and smoother, quite like the same thing.

After explaining this, the girl just now had already adjusted her mood and came back, Xu Zhan beckoned to her and motioned for her to continue the experiment. When the girl returned to her place, Xu Zhan took off her gloves and cast a look of help to Song Qinghui.

Song Qinghui understood, and took everyone to the next location, "What is placed here is the semi-finished product that meets our requirements, and here we will carry out a second determination of the concentration of phyllacetin......

Xu Zhan slowed down his pace to the end of the crowd, and only let out a long breath after making sure that no one could see him.

He reached out and shook the shirt behind him, under the white coat, the shirt was soaked in cold sweat, and it was really uncomfortable.

Although he seemed calm on the surface, the entertainment just now had exhausted his mental strength.

Xu Zhan laughed at himself, it's only been four years, and he is so nervous that he will encounter more refined experimental instrument operations in the future, what can he do.

He secretly made up his mind that in addition to teaching himself the basics of pharmacy, he should also make up for various basic experiments and presentation skills.

The whole tour was not long, and it was over after ten minutes. The bigwigs were brought back to the hotel for dinner by the people arranged by the school, and after Xu Zhan sent them away, he leaned on the low table, looking like he had been drained.

Song Qinghui turned around and saw Xu Zhan's weak look, "What's wrong with you kid today, I feel like I'm not in a state all along?"

Xu Zhan immediately thought of what Zhang Shaojie said just now, and said nonsense: "It's not like I accidentally stayed up late last night, and I haven't eased up yet." ”

Song Qinghui thought for a while, nodded and said, "Also, you have worked hard in the past few days to restart the ceremony and visit the laboratory. Then you don't have to deal with outsiders, a few meetings in the field, if you don't want to go, it's fine. Didn't you just shout that you were hungry?"

Xu Zhan's stomach let out a series of hungry empty sounds. He touched his stomach, he was really hungry.

Song Qinghui laughed and shouted to the researchers and students in the laboratory: "Everyone stop what you are doing, Brother Zhan please have afternoon tea today!"

The laboratory, which had been extremely quiet and dreary just now, suddenly boiled and was full of life.

Xu Zhan, who was forced to be treated, couldn't cry or laugh, "Little uncle, you are not kind! Why am I treating!"

Song Qinghui glared and rubbed the top of his hair, "You kid asked me to wipe your ass a few times today, can you have a good conscience if you don't invite me to a good meal? Everyone too, how many days have you been up all night in order to cooperate with your devil's plan!

The researchers and students in the laboratory followed suit, "Brother Zhan!

Xu Zhan touched his wallet painfully, "Okay, okay, where to eat, you have the final say!"

I hope that the "self" economy of this world will be much better than the original self, otherwise he will have to live with a steel hammer every penny.

Xu Zhan was distressed, why didn't he go to the parallel world where he was engaged in mathematical research "by himself"? He believed that with his spirit of living a careful life in the past four years, there was absolutely no pressure to change careers to engage in mathematics.