Surface-cover的意思|示意

The assessment will cover the whole land surface of the Earth with about 9000 samples.

该评估将覆盖地球的整个地表并提供9000份样本。

Thus, although the winter sea-ice cover might decrease, the surface waters would remain cold enough so that the decrease would not be excessive.

因此，虽然冬季海冰覆盖面积可能减少，但表层水将足够冰冷，因此海冰覆盖面积不会减少太多。

The oceans that cover three quarters of the Earth's surface can be thought of as our great water reservoirs.

占地球表面四分之三的海洋可以被看作是我们巨大的蓄水池。

Globally, forests now cover about 31% of the Earth's land surface.

就全球而言，目前森林覆盖约占地球陆地面积的31%。

They may only cover 5 per cent of the world's land surface, but they emit three quarters of its greenhouse gases.

也许城市仅仅覆盖了世界地面的5%，但是，它们排放出四分之三的温室气气体。

Although volcanic soils cover just one percent of the Earth's land surface, they support roughly 10 percent of its population.

虽然火山土只覆盖了地球陆地表面的1%，但是它们供养了近10%的人口。