boring by percussioncabletool wellpercussion drillingpercussive drillingpunching drillingspudding冲击: lash; pound钻井: borehole; well drilling水冲击钻井: jet-drilling旋转冲击钻井: rotary percussion drilling液压冲击钻井: hydraulic percussion drilling下载手机词典可随时随地查词查翻译