In the 80s, it was a painful thing to build a real room by yourself, and those irresponsible state-owned factories did not care about what kind of containers they made, nor how many sins the people who used them would suffer after getting them.

If it is really a middle school room, then the teacher only needs to explain on the stage, "Students, please pay attention, the accuracy of all the containers you use is not accurate, and the conditions are limited", and this matter will be considered a thing of the past.

But when someone wants to do research, it's a big problem.

First of all, you have to assume that all the equipment and instruments are not trustworthy, and then re-measure it yourself, and pick out the few pieces that occasionally appear with accurate accuracy before they can be used for real life.

It's like the legendary selection of sniper rifle bullets. The factory made a bunch of bullets, and the soldiers squatted there to pick them up one by one, compare them one by one, and then use them on the battlefield.

Fortunately, when Yang Rui was a graduate student, he also encountered such a bad thing. Although the domestic instruments of the 21st century are much stronger than the domestic instruments of the 80s, the accuracy requirements of the academic community are also constantly improving, and in the end, the work of debugging the instrument can only be left to Yang Rui and other graduate students.

Yang Rui checked all the newly bought containers by making a real yàn for the students, and the results were not matched with each other, and he couldn't help but feel cold.

The state-run chemical instrument store also knew what was going on, and when Yang Rui took the container back, the middle-aged woman who was sitting under the counter and making a sweater said without blinking: "Only exchange and not return, you have to pick it up in the warehouse, and you can't buy the things on the counter......"

It's about a lot of times, and when this sentence is spoken, it still has a deliberate rhythm.

As if hypnotized, Yang Rui and several students obediently sent the containers to the warehouse at the back of the store, and then moved the cardboard boxes on the iron shelves one by one, like soldiers picking up bullets, squatting on the ground, silently selecting.

If it is 30 years, you can buy foreign products, but in 1982, let alone foreign imported containers, it is very difficult to change a chemical instrument store, there is such a store in the Nanhu area, or a branch of Pingjiang. In other words, what kind of quality you see here is what kind of quality Pingjiang's is.

Really good things, there are about some places in Bei*Beijing, where the most elite scientific research institutes in the country are concentrated, there are always some real places that cannot be avoided.

But in Hedong Province, one acre and three points of land, the big-name research institute is estimated to have its own purchase channels, and the real yàn room listed in Xibao Middle School or Xibao Meat Factory, if you want to buy things, you can only go to ordinary stores to buy things, and you need precision and quality, which is obviously not possible.

Yang Rui could only silently squat in the warehouse to choose.

The yellow headlights hung down on the ceiling more than five meters high, quite dim, and the width between the iron shelves was also narrow, Yang Rui squatted for a while, and felt unbearable, thinking: Fortunately, it is a body that exercises every day, if it is according to the previous body, the next two days will be done.

Yao Qi, who came to help, was a clever young man, and found that Yang Rui changed his feet frequently, stretched out his head and looked around, and said: "Otherwise, let's move things to the door to pick them, open the door, and move a chair, people can be more relaxed, but it's a bit blocking people's way." ”

"Move to the door first. Yang Rui thought about it, took out a pack of Big Wild Goose Pagoda from his pocket, gave it to Yao Qi and said, "You go and give a cigarette to the masters outside, just say that we will pick up a little more and occupy a place." ”

"Gotcha. Yao Qi was less than 1.6 meters tall, but he jumped three feet high, took a cigarette and went to the yard.

Although it is only a small chemical instrument store, it has more than 20 employees, and there are seven or eight people guarding the warehouse.

With so many people, naturally they don't have anything to do, they come and go on time every day, pretending to go to work. Yang Rui didn't expect them to help, but he didn't want them to block his choice.

After all, turning over so many boxes of things is ultimately increasing people's workload. According to the style of state-owned enterprises, no matter how idle you are, you won't do extra work, and you won't be able to send a pack of cigarettes out.

Cao Baoming and another student named He Cheng in his bench press group helped Yang Rui move up and down.

Unlike Cao Baoming and Su Yi, He Cheng is a tall and thin boy who looks a little thin, and when he started to practice bench press, he couldn't even push the smallest barbell piece, so he hung up the clamp on the fifteen-kilogram horizontal bar and began to push, and until now, he finally pushed 35 kilograms, but when he picked up the heavy cardboard box, he didn't have Cao Baoming's briskness.

Yang Rui did his best to select the container, and then took great pains to pick the reagent.

The reagent can't be tried on the spot, so you can only pick a good brand. Fortunately, domestic research institutions also know how unreliable domestic products are, so many research institutes have made so-called refined reagents on top of pure reagents, and the price will be a little more expensive, and the purity error will be a little smaller.

Yang Rui picked up some of the ones that could be seen, and couldn't help thinking: "It's no wonder that those who engage in research should be academic authorities, this is a national key project...... No, as long as it is a provincial key project, the things used must be carefully selected, which is more useful than having money. ”

"Okay, that's all, next time I have to go to Pingjiang to see, but the road is a bit far, and it's not convenient to take the shuttle. Yang Rui greeted Cao Baoming and asked him to help send the selected reagents to the counter to settle the accounts.

The salesman was still busy making sweaters, and when he saw the first cardboard box sent by Yang Rui, he calculated the result with his heart, and said, "Eighty-five yuan eight, no change to find." ”

After saying that, she bowed her head and went about her business.

Yang Rui smiled and said nothing.

Immediately afterwards, there were two more "bangs", and Cao Baoming and He Cheng also held the cardboard box and put it on the counter.

Yao Qi walked slowly, but he didn't admit defeat and hugged a big box, which contained a mechanical analytical balance with a glass cover, which was extremely heavy and heavy, and was placed on the counter, making a muffled sound of "dong".

The bear girl who was playing the sweater looked up in surprise, recognized the box, and said, "You ordered this thing?"

"Yes. I paid a deposit of 500 and this is a deposit bar. Yang Rui took the receipt and showed it to the other party.

"Your unit is quite rich, do you bring the rest of the money?" The salesman finally put down the sweater in his hand, stretched his waist, and then did a set of stretching exercises in front of Yang Rui, before he began to flip through the small notebook in the drawer, and said: "I want to keep an account of this thing, and also, you open the box to see if the accessories are all incomplete? ”

It was another expression of subdued and frustration, and Yang Rui had no choice but to take out the balance of analysis.

It is a clock-like device with intricate components like clock gears, and all the mechanical parts are strictly regulated like clocks in order to ensure accuracy.

Its accuracy is one ten-thousandth of a gram, which is 0. 1 mg is an indispensable member of modern quantitative analysis, and this guy is indispensable in almost all university rooms.

Of course, if you go to college after 2000, the mechanical analytical balance is just a difficult tool, and when it comes to doing it, students would rather wait in line for an electronic analytical balance than operate a complex mechanical analytical balance.

Yang Rui was naturally reluctant to operate this thing.

The same is to weigh something, the electronic analytical balance gives the result instantaneously, but the mechanical analytical balance has to constantly adjust the knob, beam, lever, vernier, if it is a substance, it is nothing, but most of the time, they encounter a variety of mixtures.

Yang Rui had studied mechanical analysis balances in a few classes when he was an undergraduate, and he was eager to smash this thing at that time.

However, in the 80s, when quantitative analysis was done, only mechanical ones were available, and when Yang Rui recruited practical assistants, he made up his mind to throw out all this kind of work.

"Little brother, which unit did you buy the balance for?" A middle-aged uncle watched Yang Rui take out the money, and finally couldn't help but walk out of the shadows.

"Fort West Middle School. ”

"Which company is Xibao Middle School?" In the thinking of normal people, rich middle schools are naturally enterprise middle schools.

"It's not a factory-run middle school. Yang Rui shook his head, diverted the topic, and asked, "Are you from a local research institute?"

The middle-aged uncle was a little surprised, touched his thinning hair, and asked, "How do you know?"

"In the chemistry shop, wearing a shirt again, it's either from the school or the research institute. Yang Rui replied naturally.

"Yes, there are only 807 and 510 in Nanhu, and there are no colleges and universities, so it can only be a research institute. The middle-aged uncle explained to himself, with a taste of the bottom of emotional intelligence.

There are the most such people in schools and research institutes, and only in this kind of place can they have room for survival.

Yang Rui nodded habitually and said, "That's what I guessed." ”

"I'll just say it...... Hey, are you going back?" The middle-aged uncle wanted to learn how to do it, but he didn't expect Yang Rui to eat this set at all, and he was about to leave with something, so he could only step forward to stop him.

Yang Rui said angrily: "Do you have something?"

"Sort of. ”

"You don't say I'm leaving. ”

"It's not a big deal...... I just see that the analysis balance you bought is quite new, is it a new product in Shanghai?", he asked the salesperson.

is also middle-aged, the aunt is very busy, her eyes are staring at the sweater, she doesn't raise her eyes, and says, "You don't come to see it every day?" ”

The middle-aged uncle was suddenly very embarrassed, and said, "I didn't take it apart either." ”

"With your eyes, you can see through the box. "Auntie's words are sharp, and they are very irresistible.

The middle-aged uncle bowed his head and admitted defeat, peeked at Yang Rui and said, "This brother, I will discuss something with you, what do you think?" ”

"Oh?"

"The mechanical balance in my room was broken by chance, but the funds for the first half of this year were used up, and I scraped together some money myself, and it was not enough to buy a new ...... It just so happened that your school bought one, so I thought, can you tell your principal to borrow it from me on your weekend. ”

This is really unkind, Yang Rui scolded twice, and shirked: "It's useless for you to find me for this matter, you have to find the principal." ”

"Yes. ”

"What about the hundreds of kilometers from Xibao to Nanhu, do you run it every weekend?"

"You have to run, you have to run, you have to run. The middle-aged uncle looked tragic, and he didn't even have the balance in the room, and he was indeed miserable.

……