The Antarctic species have few special adaptations for polar life.

南极物种对极生活几乎没有什么特别适应性改变。

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

在本世纪结束前，极海水表层有可能变得对霰石不饱和。

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

区气变化大，副极气爽湿润，到南极洲冰天雪。

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.

利用北京区1977—1990年高空、面资料，讨论了极对流层顶与面温度关系。