- pellet impact drilling
- 霰弹: shrapnel; canister; grapesho ...
- 冲击: lash; pound
- 钻进: worm one's way in; drilling
- 霰弹冲击钻头: pellet impact bit
- 冲击钻进: boring by percussion; cable drilling; chuck drilling; churn drilling; impact drilling; jar; percussion boring; percussion drilling; percussive boring; percussive drilling
下载手机词典可随时随地查词查翻译