warm air duct 中文意思是什麼
warm air duct
解釋
管送暖氣-
Warm air supply duct
暖風供氣管道 -
Measurement of noise emitted by machines ; airborne noise emission ; enveloping surface method and in - duct method ; fan - assisted warm air generators, fan - assisted air heaters and fan units of air handling devices
機器排放的噪聲測量.空氣傳播的噪聲.第56部分:包洛面
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