旋转冲击式钻孔 rotary percussion boring
冲击旋转钻进 percussive rotary drilling
冲击旋转钻井 percussive-rotary drilling
旋冲式钻机 rotary machine
旋转冲击式动力头 Rotation-percussion rig
旋转冲击钻井 rotary percussion drilling
旋转冲击钻探 rotary percussion boring
旋转式钻机 rotary rig; Rotary drilling machine
回转冲击式钻车 rotary-percussion drill jumbo
冲击式钻机 percussion drill; percussion type boring machine; impact drill
钢绳冲击式钻机 cable tool drill
手动钢绳冲击式钻机 hand churn drill
钻杆式冲击钻机 rodtool rig
电动旋转钻机 electric rock drill
短螺旋钻机钻孔成桩工艺 Drilling-into-pile techniques by the Short Spiral Drill
反[气]旋式旋转 anticyclonic rotation
反旋式旋转 anticyclonic rotation
加强型旋转式机械熔接 enhanced rotary mechanical splice; Splice; enhanced rotray mechanical
卡尔多旋转式转炉 kaldo converter