泥中的高氯酸盐于是吸收空气中的湿气，直到有足够的水使其溶解（这个过程叫作“潮解”）。

The perchlorates in the mud then sucked moisture out of the air until there was enough water for them to dissolve (a process known as deliquescence).

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不过，有一段时间，莫斯科市周围的土地起到了自然空调的作用，通过从地面蒸发湿气保持空气凉爽。

However, for a while the land around the city acted as a natural air conditioner, keeping the air cool through evaporation of moisture from the ground.

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这样，它对距离很容易湿气复盖和有一干组预备好的状态。

This way, it is easy to remove wet coverings and have a dry set ready.

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