Within about a millimeter of the water, air temperature is close to that of the surface water, and the air is nearly saturated with water vapor.

在离水不到一毫米的地方，空气的温度接近于地表水的温度，空气中的水蒸气几乎饱和了。

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Since a plant uses it up in the air around, the plant needs moving air to bring more CO2 close to its surface!

由于植物会将周围空气中的二氧化碳耗尽，因此需要空气流动将更多的二氧化碳带到其表面！

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The English youngster noticed that pollution levels are around two-thirds higher close to the ground than they are in the air at the height where they are recorded by the agency.

这名英国年轻人注意到，接近地面的空气污染水平比该机构所记录的高空空气污染水平高出约三分之二。

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If Angola commits its relatively well-equipped air force to Congo, it could close the air-bridge the rebels are using to ferry troops from the east to their western front.

ECONOMIST: War in the heart of Africa | The

As he prepares to walk away, Cambara remarks that they are close to an open-air market.

NPR: Somalia's Farah: Humanizing a Broken Place

Donut's base is home to several dozen A-10 Warthogs, aircraft that give close air support to troops on the front lines.

CNN: War stories: Donut in a Warthog