Can the ultra clean workbench be used as a negative pressure weighing hood?

The advantages of the ultra-clean workbench are that it is easy to operate, relatively comfortable, high work efficiency, short preparation time, and can be operated after more than 10 minutes of start-up, and can be used at any time. In factory production, when the inoculation workload is very large, and it is necessary to work for a long time and a long time, the ultra-clean workbench is an ideal equipment. The ultra-clean workbench is powered by a three-phase motor with a power of about 145 260W, which blows out the air through a "super filter" composed of special microporous foam sheets to form a continuous dust-free and sterile laminar flow of ultra-clean air, that is, the so-called "high-efficiency special air", which removes dust, fungi and bacterial spores and so on.

The flow rate of ultra-clean air is 24 30 m min, which is sufficient to prevent contamination caused by possible disturbance of nearby air, and such a flow rate does not prevent the use of alcohol lamps or Bunsen burners to burn and disinfect instruments, etc. The staff operates under such aseptic conditions, keeping the sterile material free of contamination during the transfer inoculation process. However, in the unlikely event of a power outage in the middle of the operation, the materials exposed to the unfiltered air are not spared from contamination.

At this time, the work should be quickly terminated and marked on the bottle, and if the material in it is in the proliferation stage, it will no longer be used for proliferation and will be transferred to rooting culture. If it is a general production material, it can also be discarded because it is extremely abundant. If it is in the rooting process, it can be saved for later planting.

No, from a principle point of view, the inside of the negative pressure weighing chamber is in a negative pressure state compared with the background environment, which can ensure that the dust does not spread, while the ultra-clean workbench has no return air system, and the internal environment is in a positive pressure state compared with the background environment, which will lead to dust leakage during weighing; Therefore, the clean bench cannot be used as a negative pressure weighing chamber——— from Milang clean.

It should not be bad

Marketing, logistics, approval specialists, etc., as well as recruiting international professionals.

You're still completely blind!

Is it important to have a graduation certificate or an English certificate?

Are you crazy?

I don't know how many times more important a graduation certificate is more important than a grade certificate. You pay so much tuition just to buy a diploma. You can take the grade certificate for the rest of your life. It's useless for you to take a pets4 out and talk to Ben.

I'll tell you. I am now holding the PETS4 and CET6 certificates, and I still have to wait for my graduation certificate.

You're playing less at college (the school exam is definitely easier than the ppets4 exam).Otherwise, you will regret it when you go out of society.

The way to learn is to be a new person. The shortcut to English is hard work. I'm a non-English major, and I'm also taking the Specialist 8 exam. But I don't have to memorize 10,000 words, and I have to memorize them when it's dark.

Words are the foundation. And then you can go online and don't know how much to listen to? Go to the Hujiang River for more bubbles.

You can buy a template book back for composition, and the exam will be set directly! If you can do the above 3 points, your English will naturally improve.

Brother, I will retake my English as many times as I take!

Can't help you!

Of course, the graduation certificate is more important!!

Mind if you take an English training course, you will learn a lot!! 1``

There's no need to worry. It's a lot easier than going to school. As long as you are willing to do it, you are willing to do it. You will adapt to working at the age of 16, will you not have more confidence than them?

Areas of expertise: English Translation, Common Sense of Life, Job Hunting, Employment, Transportation, Activities: Activities that I have not participated in for the time being.

In the face of the current employment situation, job seekers should have the following qualities and.

Ability version: 1. Have excellent moral quality. Many companies add some moral character test questions when recruiting, and take whether they have moral qualities such as firmness and bravery, respect for the old and love for the young, positive and enterprising, hard work, and hard work as an important indicator of employment. Therefore, job seekers should pay attention to starting from small things, starting from little by little, and cultivating ideological and moral qualities.

2. Have excellent professional knowledge and quality. In addition to learning the basic knowledge of professional knowledge, it is also necessary to reserve some knowledge related to professional knowledge, including knowledge of non-intellectual factors, such as learning ability, interest cultivation, knowledge development, communication ability, collaborative team ability, etc.

3. Have a high level of emotional intelligence. These include respecting all people, not imposing one's values on others, having a clear understanding of oneself, being able to work under pressure, being confident and not complacent, having good interpersonal relationships, being friendly with friends or colleagues, being good at dealing with all aspects of life, taking everything seriously, and so on.

4. Have certain practical experience. We should cherish all opportunities to exercise in practice, use all time to find some practical work to do, and accumulate our own work experience.

Strong psychological quality and comprehensive quality. Communication and organization skills, oral and written communication skills, adaptability, learning ability, and ability to quickly integrate into the group.

In short, you can do things and be a person.

Presentation skills, good expression skills can add a lot of points to you.

Professional quality, without professional knowledge, it is difficult to face the severe employment situation, and English should be good.

Good etiquette.