1) siner bar
冲魂杆
2) jumper
冲魂杆
3) chisel bit
冲魂钻头
4) chopping bit
冲魂钻头
5) percussion drill
冲魂机
6) percussion drill hammer
冲魂锤
7) light hammer drill
轻冲魂
8) percussing boring
冲魂进
9) percussion hole
冲魂孔
10) churn drilling method
冲魂井方法
参考词条