冰块放入保温杯后融化速度会 冰块放入保温杯后融化速度会变慢还是变快英文双语对照

保温杯保存冰块是会化的，但是融化的速度会比较慢。保温杯可以防止内外热量交换，这种东西既可以保持热度，还可以保持冷度。

保温杯的保温原理是杯壁中空，这样在内外壁之间是真空的，真空环境下，一点空气也没有，这个时候，空气和杯壁就不会成为温度的导体，理论上就是恒温的。

Vacuum cup saves ice cube can be changed, but melting rate will be slower. Vacuum cup can prevent quantity of heat of inside and outside exchange, this kind of thing can maintain temperature already, still can keep cold degree.

The heat preservation principle of vacuum cup is a cup of wall hollow, vacuum is between wall of inside and outside so, below vacuum environment, a bit air also is done not have, this moment, air and cup wall won't become the conductor of temperature, theoretic be constant temperature.