Nevertheless, the pockety and limited weather station in the world can hardly meet the demand of the study of the law of the change of LST.

全球与区域分布不均和有限的地面台站观测远远不足以满足研究地表温度的时空变化规律。

Petroleum is an unreproductive strategic resource, because it is pockety and finite, to gain and control sufficient petroleum becomes one of the main aims of big countrys secure tactic.

石油是一种不可再生的战略资源，由于世界石油资源分布不均、数量有限，因此，获得和控制足够的石油资源便成为大国安全战略的重要目标之一。