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heating degree-day
释义
heating degree-day
Encyclopedia
工学
〔设计参数〕
释
heating degree-day
供暖度日数
一年中,当室外日平均温度低于供暖室内设计温度时,将日平均温度与供暖室内设计温度差的绝对值累加,即得到一年的供暖度日数。是确定建筑气候区划的重要参数。
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