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Online Canton Fair Live Tutorial : 6 mistakes to avoid before starting broadcast
May , 28 2020
The following is the internal training information from a foreign trade company, which may allow you to take a few detours: Time and format of the Canton Fair: The Canton Fair 2020 will be held online from June 15 to June 24 Participating units: 25,000 units Product Display Platform: Canton Fair Platform + Enterprise Independent Station Ⅰ. Features of online exhibitions and independent stations: 1...
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Understand FDA certification in one article
May , 25 2020
FDA certification: The United States Food and Drug Administration is abbreviated as FDA. FDA is one of the executive agencies established by the US government in the Department of Health and Human Services (DHHS) and the Department of Public Health (PHS). As a scientific management agency, FDA's responsibility is to ensure the safety of food, cosmetics, drugs, biological agents, medical equipment,...
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Understand CE certification in one article
May , 25 2020
CE certification, which is limited to the basic safety requirements of products that do not endanger the safety of humans, animals and goods, rather than general quality requirements, the harmonized directive only stipulates the main requirements, which are standard tasks. Therefore, the accurate meaning is: the CE mark is a safety mark instead of a quality mark. It is the "main requirement" that ...
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Are you ready for the Live Room of the Canton Fair?
May , 19 2020
Today, I would like to introduce some methods to you, let's do everything possible to lay out and improve ahead of time before the start of the Canton Fair, and then win the first place in the online Canton Fair! 1. Planning of LVB content. First of all, you need to be clear about the theme. Topics can be: the company's brand story, the company's technical strength, the company's philosophy, award...
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What kind of indoor temperature and hygrometer is more accurate?
May , 18 2020
There are three kinds of temperature and humidity meters commonly used: 1.the electronic temperature and humidity meter determines the humidity according to the electrical conductivity of the humidity sensitive resistor or humidity sensitive capacitor at different humidity. 2.mercury or alcohol thermometer, the humidity is measured by a thermometer with double glass tubes, one of which has a volat...
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What is the concept of humidity in the weather forecast? What does it mean if the humidity is 100%?
May , 18 2020
The humidity forecast is mostly relative humidity, such as 100% here. 100% means that 100% of the water vapor can be contained in the air. If water vapor enters the air, it will condense into water. The upper limit of how much water vapor can be contained in the air is affected by temperature. The higher the temperature, the faster the water vapor molecules move and the less likely ...
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7 things you don't know about humidity
May , 18 2020
1. The humidity of 100% doesn't mean it's going to rain. Humidity is a physical quantity used to describe the amount of water vapor in the air. There are many ways to express air humidity, of which the most commonly used is the "relative humidity" in meteorology. So what is relative humidity? Let's think of air as a sponge. It can hold at most a certain amount of water, say 1 liter. Then the relat...
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The harm of Ultraviolet radiation to Human body
May , 15 2020
Ultraviolet rays have the most obvious effect on the skin and eyes of the human body. The absorption of ultraviolet rays by the skin is related to its wavelength. The shorter the wavelength, the smaller the depth of penetration into the skin, the weaker the melanin deposition after irradiation, the longer the wavelength, the greater the depth of penetration into the skin, and the stronge...
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Advantages and disadvantages of ultraviolet rays
May , 12 2020
UV advantages: 1) disinfection and sterilization; 2) promote bone development; 3) it is good for blood color; 4) it can occasionally treat some skin diseases; 5) it can promote mineral metabolism and vitamin D formation in the body. Ultraviolet disadvantages: 1) cause skin aging to produce wrinkles; 2) produce spots; 3) cause dermatitis; 4) cause skin cancer. Sterilization principle of UVC. Among ...
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