坑道

• They are ventilating the sap of a coal mine
  他们正在使煤矿坑道通风。
• Application of model zdy - 5 hydraulic tunnel drilling machine
  5型煤矿用全液压坑道钻机的应用
• Comprehensive health evaluation of soldiers in a sap on duty
  某坑道执勤部队士兵健康综合评价
• A tunnel dug to intercept and destroy an enemy ' s mine
  对抗地道截断或破坏敌人坑道而挖的地道
• Ninth time . that business on cato neimoidia doesn ' t . doesn ' t count
  是第9次，凯特坑道那次不算
• Shock waves propagation inside tunnels
  坑道内化爆冲击波的传播规律
• Pit converted timber ; timber sleepers
  矿山坑道用的已加工木料.枕木
• Analysis of pressure and deformation of wall rock near deep tunnel
  深部坑道围岩压力与变形分析
• Hong kong country club , wong chuk hang road
  乡村俱乐部,黄竹坑道