In the Antarctic, the temperature rarely rises above freezing point.

南极，温度很少升到零度以。

The temperature is below zero.

温度零度以下。

Ice forms at 0'c.

摄氏零度时结冰。

There is no heat for the subfreezing temperatures, and the bunks are planks of plywood attached to metal scaffolding.

他们睡木板搭成的高低，北京的冬夜气温已经零度以下，但他们的工棚会有暖气。

Some controversal points, like the absolute value of entropy and the proof of the unattainability of absolute zero by means of Carnot cycle, are discussed.

本文还讨论了一般所争论的问题,如熵的绝对值问题,利用卡诺循环证明绝对零度能达到问题。