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Vacuum bags can really 'vacuum'?

by：Kolysen 2021-01-06

vacuum is to point to in the given space below the meaning of an atmospheric pressure gas state, is a physical phenomenon. In & other; Vanity & throughout; Because there is no medium to transfer, voice, but the electromagnetic relay is not affected by vacuum. In fact, in the vacuum technology, vacuum is designed for the atmosphere, a particular part of space inside material expelled, the pressure is less than a standard atmospheric pressure, we known this space for vacuum or vacuum.

what we call the vacuum bag is the borrowed the principle, by eliminating the oxygen inside the packaging, to prevent foreign gas into, so as to achieve a state of vacuum. By doing this we can extend the shelf life of food, inhibit bacteria breeding in food packaging bags, very good guarantee the freshness and taste of the food. Manufacturers in the use of vacuum bags to pumping air into vacuum state, then heat antivirus, such as steaming, boiling, etc. , using vacuum bags you must see to it that the packing requirement in the process of gases, no pollution.

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