percussive drilling
短语词组
- percussive rotary drilling technology 冲旋钻井技术
- percussive machine drilling 冲唤钻眼
- percussive rock drilling 冲击凿岩
- pneumatic percussive rotary drilling 风动冲击回转钻进
- percussive rotary drilling 冲积转式钻眼;冲积钻钻探
- percussive ratory drilling technology 冲旋钻井技术
- percussive reverse drilling 冲击反循环钻进
- vibratory y percussive drilling 振冲式钻孔 返回 percussive drilling