极地

The Antarctic species have few special adaptations for polar life.

南极的物种对极生活几乎没有什么特别的适应性改变。

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.

这个变化大，副极的凉爽湿润，到南极洲的冰天雪。

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.

利用北京1977—1990年的高空、面资料，讨论了极对流层顶与面温度的关系。