The Antarctic species have few special adaptations for polar life.

南极物种对极地生活几乎没有什么特别适应性改。

Polar surface waters most likely will become undersaturated for aragonite before the end of this century.

在本世纪结束前，极地海水表层有可对霰石不饱和。

In this area the climate changes from cool, humid, and subpolar to the frozen conditions of Antarctica.

这个地区气候化大，副极地气候凉爽湿润，到南极天雪地。

The relationship between arctic tropopause height and surface air temperature is discussed by using the aerological sounding and surface data during 1977-1990 in Beijing area.

利用北京地区1977—1990年高空、地面资料，讨论了极地对流层顶与地面温度关系。