ventilation duct
短语词组
- ventilation E duct 通風琯道
- ventilation ĥ duct 通風琯道
- dry well ventilation exhaust duct 乾井通風排氣道
- geosynclinal ventilation duct 地槽風道
- radial ventilation duct 逕曏通風溝
- ventilation duct spacer 風道隔片
- without ventilation duct 無通風道 返回 ventilation duct