1) sinker drill
冲钻
2) revolving drilling
旋冲钻井
1.
It is con- sidered revolving drilling technique is one of the most effective methods to solve the problem of hard strata drilling in deep well and has good applying prospects.
旋冲钻井技术被认为是解决深井硬地层钻井难题的最有效方法之一,具有良好的应用前景。
3) Pressing drill sleeve
冲钻套筒
4) drilled(bored)pile
冲（钻）孔桩
5) Z-mouthed chisel
Z形冲钻
6) water flush boring
水冲钻探
参考词条
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
说明：补充资料仅用于学习参考，请勿用于其它任何用途。