The petri dish is used to cultivate microorganisms. It is a cylindrical glass vessel with a very low height and a glass lid on it. When cultivating microorganisms, pour the prepared culture medium into the petri dish and wait for the culture medium to solidify.
Then just inoculate microorganisms on it. Therefore, when the petri dish is used up, it is still troublesome to handle. First, the culture medium in the form of solid gel in the petri dish must be poured out. Because the culture medium is generally in the shape of solid gel, so
It is easy to stain the glass and difficult to pour out. It needs to be scrubbed repeatedly with a brush. Not only that, the petri dishes are often marked with numbers, and they need to be scrubbed off. Therefore, the cleaning work of the petri dishes is relatively time-consuming and labor-intensive. As for the elimination of
Bacteria sterilization is another process of petri dishes. You need to dry the washed petri dishes, then wrap a dozen or so tubes with newspapers or kraft paper, and put them into a high-pressure sterilizer for sterilization. A dozen or so tubes
Wrapping up one tube is of course a lot of work.
So when Su Lingfei said these words, she just wanted Zhang Weidong to come over and work overtime at night.
"Okay, no problem!" Zhang Weidong nodded calmly.
Su Lingfei thought that her words would definitely make Zhang Weidong jump up and down, or at least show a sad expression on his face. Of course, it would be better if she could ask her for a favor. But unexpectedly, Zhang Weidong still looked calm.
, as if this little utensil is nothing to him.
"Then I'll bother you, Teacher Zhang. Remember to hurry up. I'll use it tomorrow." Su Lingfei said with a smile on her face, but secretly gritted her teeth in her heart. She would die if she screamed. What's cool? What's the drag? Okay, this
It's you who brought it upon yourself, but my aunt wants to see how long you have to work!
"Don't worry, this matter won't trouble me." Zhang Weidong glanced at the utensils on the counter and said calmly.
Zhang Weidong is not a fool. Now of course he can see some of Su Lingfei's intentions. However, since he is a member of the research team, Zhang Weidong doesn't think it's okay. After all, someone has to do the cleaning, right? In this kind of situation
When it comes to matters, Zhang Weidong would never bother arguing with a woman, and besides, this matter really doesn't trouble him.
Seeing that Zhang Weidong still looked cool and coaxing at this time, Su Lingfei almost couldn't help but run away, revealing his "sinister" true face. But in the end, Su Lingfei still said with a smile: "Okay, you are busy
Well, I also need to prepare some buffer solution."
After saying that, Su Lingfei walked to another table and started to prepare the buffer solution, but her beautiful peach blossom eyes secretly peeked towards Zhang Weidong.
Seeing this, Su Lingfei was immediately dumbfounded!
I saw Zhang Weidong's hands as if they had magic power. He casually grabbed the pile of petri dishes and picked up a petri dish between his fingers. With two hands and ten fingers, he casually grabbed it.
Grab eight petri dishes for him in a neat order.
This was nothing. What shocked Su Lingfei the most was that Zhang Weidong gently shook his hands on the trash can. The culture medium that was usually difficult to get out fell into the trash like round cake-shaped jelly.
In the trash can, once the culture medium fell off, the bottom of the petri dish was clean with no residue visible.
Originally there were four to five hundred petri dishes, and it would take an hour or two to clean the medium. But just when Su Lingfei was dumbfounded, Zhang Weidong had already processed fifty or sixty. At this rate, it is estimated that there will be no more.
In five minutes, Zhang Weidong can clean out all the culture media in four to five hundred petri dishes.
In fact, Zhang Weidong didn't want to shock the world too much, he just used his hands more dexterously. Otherwise, he would really have to use his true energy at all costs, and it wouldn't be a matter of seconds to clean up these culture media.
But even though Zhang Weidong had already restrained himself very much, Su Lingfei was still dumbfounded. Finally, she couldn't hold it in any longer, so she walked over and stretched out her jade-green fingers to pick up the petri dishes. However, no matter how hard she tried, she couldn't pick up four of them with one hand.
Not to mention someone like Zhang Weidong who could easily pick up four of them with just one hand.
Unconvinced and unbelieving in evil, Su Lingfei took another petri dish and shook it vigorously on top of the trash can. However, she broke her wrist and did not shake off the culture medium. Finally, Su Lingfei, who was depressed and helpless, took the petri dish.
, and tap the edge of the trash can gently with the mouth facing down. This time, the culture medium was finally removed, but the walls of the petri dish were covered with residue. Unlike Zhang Weidong, every person who passed by him
When you shake the petri dish, there will be no residue left on it and it will be clear.
Su Lingfei naturally did not believe in evil, so she took another petri dish and started messing with it, but the result was still the same. She was so angry that she banged the trash can with the petri dish.
With a bang, the petri dish finally couldn't bear Su Lingfei's "violent" beating and broke.
"You're really awesome! Come on, don't cause trouble. Be careful and you'll cut your hands. You can't learn this trick." Zhang Weidong saw Su Lingfei, this poor woman, as if she had been struck by evil spirits. She even talked to a groom.
Pan couldn't get through, so he couldn't help but frown slightly and said mercilessly.
What? He said I was causing trouble? Su Lingfei was so angry that her face was blue, but she looked down at the broken petri dish in her hand. No, pouring the culture medium could break the petri dish. This is not making trouble, so
When she thought about it, Su Lingfei really had the urge to pick up the glass shards in her hand and cut her wrist.
You brat, just wait and see, my aunt didn't believe you could clean so many things in one morning! In the end, Su Lingfei threw the glass fragments in her hands into the trash can bitterly, and returned to her own countertop to continue preparing the buffer solution.
However, Su Lingfei's buffer solution was not ready yet, and she was immediately irritated again. After quickly cleaning up the culture medium, Zhang Weidong opened the two faucets on the sink at the same time, holding four petri dishes in each hand as before.
Then he moved his hands and fingers together, and the eight petri dishes were quickly turned over in his hands under the tap. The movement was really fast and smooth, much more exciting than acrobatics. In just a moment, the eight petri dishes were washed at once.
Okay, then Zhang Weidong raised his hand.
Swish, swish, swish! Just like playing a Frisbee, eight petri dishes came out one after another, and then they were stacked diagonally one on top of the other, with their mouths facing downwards, neatly arranged in a row on the tray.
How is this possible? Su Lingfei opened her eyes wide, and her eyeballs quickly moved back and forth as the petri dishes flew one after another in the air.
Within a few minutes, nearly a hundred petri dishes were neatly placed on one tray. What was even more exaggerated was that there were no water droplets hanging on the glass walls of any of the petri dishes. This was a sign that the glassware had been washed clean. Su Lingfei was doing it.
Scientific research, of course, this is clear.
Fortunately, when Zhang Weidong washed the beaker later, the Erlenmeyer flask became more orderly, but even in this way, his movements were still many times faster than ordinary people.
So at noon, Zhang Weidong had cleaned the piles of utensils on the countertop and arranged them neatly. As long as he came over in the afternoon and sterilized them again, he would be done. Su Lingfei had been very careful before, thinking that Zhang Weidong would be alone.
Cleaning so many things means you have to work until the afternoon. If you include sterilization and disinfection, you may have to work overtime in the evening.
Seeing Zhang Weidong wash his hands, twist his butt, and raise his hands in a very cool manner, Su Lingfei couldn't help but feel a little admiration for Zhang Weidong. At the same time, she felt more unwillingness and depression.
"What are you pulling on? Just move your hands and feet faster!" Su Lingfei said bitterly while scrubbing her hands. But although she said so, she knew very well in her heart that Zhang Weidong was definitely not just a little faster, but also a little faster.