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圓形風管出風計算風量
Sep 29th 2013, 05:39

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有七個出風口 每個出風口平均出風量為7.9 M/S(每秒7.9公尺) 出風口直徑為300mm 這個出風總風量為多少 計算為CMH (每小時多少立方米) 謝謝...

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