相关题目
Clouds, fog, or dew always form when water vapor （ ） ．
The amount of moisture the air can hold depends on air temperature （ ） is the temperature at which air becomes saturated.
The wake separation criterion between the preceding medium aircraft and the light aircraft behind is（ ）.
The reverse process of freezing is （ ）. It is the change of ice to water.
（ ） is the changing of ice directly to water vapor, or of water vapor to ice.
The reverse of evaporation is （ ）. It occurs when water vapor changes to a liquid, as when water drops form on a cool glass on a warm day.
（ ） is the changing of liquid water to invisible water vapor.
（ ） in the Northern Hemisphere flow clockwise around highs and counterclockwise around lows.
（ ） deflects the wind toward the right in the Northern Hemisphere.
Pressure gradient and （ ） work in combination to create wind.
