实际上，汽化热与温度有关。
由于汽化热的存在，使气温下降，通过所说的热交换器把室外空气降温后送进室内。
The outdoor air which has been cooled by said heat exchanger is passed into room.
由于汽化热的存在，使气温下降，通过所说的热交换器把室外空气降温后送进室内。
The outdoor air which has been cooled by said heat exchanger is passed into room.
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