可以防止由于蒸发造成水的损失。

This prevents water loss due to evaporation.

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蒸发器热损失少。

The heat loss is less.

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较大的雨滴下落得很快，蒸发引起的质量损失较少。

Larger drops fall quickly and can better afford to lose mass by evaporation.

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蒸发器热损失少。

The heat loss of evaporator is less.

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蒸发器热损失少。

Heat loss of evaporator may be reduced.

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蒸发器热损失少。

Heat loss of evaporator may be reduced.

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