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.

youdao

降水是一种雾雾的蒸发式时发生的相对温暖的雨或雪落空凉爽，几乎饱和的空气，蒸发和降水的饱和凉爽的空气。

Precipitation fog is a type of evaporation fog that happens when relatively warm rain or snow falls through cool, almost saturated air, and evaporation from the precipitation saturates the cool air.

youdao