ventilation duct meaning in English

通风道
通风管道
通气管

Fire resistance test method of ventilation ducts
通风管道的耐火试验方法
Ventilation duct for residential kitchen
住宅厨房排风道
My ventilation ducts will be too small to crawl through
我所属的建筑物通风孔将会小到没有任何人爬的进去
Fume extractor and dedulfurizing installation : wet and dry ventilation duct
排烟脱硫装置：温式干式通风道
My ventilation ducts will be too small to crawl through
我所有的建筑物通风管道将会小到没有任何人爬的进去

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