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Terms for subject Explosives and Explosive Ordnance Disposal containing 马头门 | all forms | in specified order only
ChineseEnglish
马头门又称“井筒与井底连接部”。井底车场巷道与立井井筒连接、断面逐渐的过渡段。按立井井筒的功能分为罐笼井马头门和回风井马头 ningate
马头门掘进井筒与井底车场连接处的掘进作业shaft inset construction