如果温度一定，空气中的水蒸汽含量与不饱和状态下最大水蒸气含量就有相对关系。
The amount of water vapor in the air relative to how much water vapor the air can "hold" before saturation occurs at a given temperature.
如果温度一定，空气中的水蒸汽含量与不饱和状态下最大水蒸气含量就有相对关系。
The amount of water vapor in the air relative to how much water vapor the air can "hold" before saturation occurs at a given temperature.
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