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What are the heat preservation principles of hot water bottles
2020-05-05 381
The tank of the hot water bottle is made of two layers of glass, both of which are plated with silver. Like a mirror, it can reflect the heat rays back, thus isolating the heat radiation path. The vacuum between the two glass layers of the thermos bottle destroys the condition of convective conduction. Cork, which is not easy to transfer heat, is used as the cover of hot water bottle to block the