室内相对湿度变化总会比室外相对湿度变化小，有的变化小的很多。
The indoor relative humidity is now moderated so that it is always less than the variation outside, and often much less.
室内相对湿度变化总会比室外相对湿度变化小，有的变化小的很多。
The indoor relative humidity is now moderated so that it is always less than the variation outside, and often much less.
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