- rapid blow drilling
- 快速: fast; quick; high-speed; spe ...
- 冲击: lash; pound
- 钻进: worm one's way in; drilling
- 冲击钻进: boring by percussion; cable drilling; chuck drilling; churn drilling; impact drilling; jar; percussion boring; percussion drilling; percussive boring; percussive drilling
- 冲击钻进法: fabian system
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