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Vacuum Flask
- Apr 07, 2017 -

Thermos flask, also known as electric pot, inside the double-walled bottle of vacuum for the inner liner, covering the shell into the insulation containers, is one of the most common life supplies.

Thermos flask, also known as electric pot, daily necessities, the shell with bamboo, tin or plastic, such as made of refills. Refills is made of double-layer glass, the two sides of the interlayer plating silver and other metals, the intermediate vacuum vacuum, the bottle has a stopper, can be in a longer time to maintain the bottle temperature. Usually called a thermos of hot water; a usually called ice bottle.

The inventor of Thermos flask: British chemist and physicist James Duvar (1892), so called the Dewar.

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