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。
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.
气温每升高一摄氏度，就可能从饱和空气团里多降7%的水。
For each degree Celsius of warming, 7% more water is available to rain down from saturated air masses.
当所有空隙中的空气被水取代后，我们说此时土壤是饱和的。
Soil is said to be saturated when the air in all the pores has become replaced with water.
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