室内的湿度会随时变化,这对摩擦系数影响很大。
The humidity could change in the room and that could change the friction coefficient.
用植物代替黑沥青能增加屋顶漫反射系数，蒸散能增加城市大气层的湿度；二者都有助于缓和热导效应。
Replacing black asphalt with vegetation raises rooftop albedo, and evapotranspiration can add humidity to an urban atmosphere; both help mitigate heat-island effect.
随着介质温度的升高，湿度的降低，横向水分扩散系数增大。
Moisture diffusion coefficients across grain direction increase with medium temperature increasing and humidity decreasing.
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