mechanical draft〔名词〕机械牵伸详细»
mechanical draft〔名词〕机械通风详细»
mechanical draft〔名词〕机械通风,机械抽风详细»
mechanical draft〔名词〕机械通风详细»
mechanical draft机械通风，强制通风，压力通风详细»
机械通风mechanical draft;mechanical draught;mechanical ventilation详细»
机械通风mechanical draft;mechanical ventilation详细»
机械通风mechanical draft;mechanical ventilation详细»