The assumption of constant relative humidity is important, because water vapor in the atmosphere is another efficient absorber of radiation at infrared wavelength.

相对湿度恒定的假设是重要的，因为大气中的水蒸气是红外波长辐射的另一种有效吸收剂。

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Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises.

因为温暖的空气比冷空气能容纳更多的湿气，所以只有当大气中的水蒸气量随着温度的升高而增加时，相对湿度才会保持不变。

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It is prevented by controlling the relative humidity of the circulating air and the temperature of the air.

控制循环空气的相对湿度和空气的温度可防止表面硬化的出现。

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Most fruits and vegetables need the relative humidity in storage to be kept between eighty-five and ninety-five percent.

VOA: special.2009.11.30

Heat indices combine temperature and relative humidity to indicate how hot the body feels.

CNN: Heat wave sweeps across U.S. Northeast

Some included information on relative humidity, which he converted to absolute humidity.

CNN: Study: Humidifiers may help fight flu

Shaman converted the guinea pig data from relative humidity to absolute humidity and found the link between air moisture and flu spread got much stronger.

CNN: Study: Humidifiers may help fight flu