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Terms for subject Explosives and Explosive Ordnance Disposal containing 进风巷 | all forms | in specified order only
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进风巷air intake opening
进风平巷intake gallery
进风平巷intake entry
长巷道掘进通风掘进长巷道时排除作业面污浊风流的局部通风方法。长巷道掘进通风多采用混合式通风方式,并且应尽量选用大直径风筒和保证风筒连接质量,以减少漏风和降低风筒风阻long dead-end driving face ventilation