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1·There is often subzero temperature in winter here.

这里的冬季的气温往往在零度以下。

2·If you had crashed in an ocean, a high temperature zone, or a subzero environment, your chances of survival would be reduced to zero.

如果你迫降在海洋里，高温区域或者零度以下环境里，你的生存几率将骤减至零。

3·Even in summer the temperature is subzero here.

即使在夏天这里的温度也保持在零度以下。

4·The hardness variation of D2 steel under different quenching temperature and the influence of subzero treatment on hardness of D2 steel were studied, and its microstructure was analyzed as well.

研究了D2钢在不同温度淬火后的硬度变化，以及深冷处理对其硬度的影响，并对其显微组织进行了分析。

5·Be comfortable product temperature's turn to be subzero 20 - (20) degree, the limit temperature is subzero 30 - (30) degree, is suitable to the need that most area winter USES.

该产品的舒适温度为零下20(- 20)度，极限温度为零下30(- 30)度，适合大部分地区冬季使用的需求。