percussive rotary drilling

基本解释冲积转式钻眼

网络释义

1)percussive rotary drilling,冲积转式钻眼2)rotary shot rig,旋转式炮眼钻3)wet rotary drilling,湿式旋转钻眼4)punch,眼钻,冲头5)percussive machine drilling,冲唤钻眼6)rotary-percussion drill jumbo,回转冲击式钻车