mine shaft and drift design 矿山井巷工程设计
drift zone of floating mine 漂雷漂行带
mine drift 矿山巷道
mine area drift 采区巷道
The incident began at 09:15 BST on Thursday when emergency services were called to the drift mine at Cilybebyll.
事故发生于星期四的9:15，并向Cilybebyll的矿井发出紧急呼叫。
The indoor experiment on the filling materials used for downward slicing drift mining with cemented backfill in Gaolong Gold Mine was performed.
对高龙金矿下向分层进路胶结充填采矿法所用的充填材料进行了室内试验研究。
This paper describes main technical characteristics of underhand drift hydraulic sand filling method and its successful application at North Part of Wushan Copper Mine.
简述了铲运机出矿的下向进路式水砂充填采矿法的主要技术特点和在武山铜矿北矿带的成功应用。
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