潜孔锤钻进 Down hole hammer drilling
贯通式反循环潜孔锤 reverse circulation DTH hammer
大直径潜孔锤 large diameter dth hammer ; large diameter dth
贯通式潜孔锤 hollow-through DTH hammer ; hollow-through dth ; hollow dth hammer ; hollow DTH
气动潜孔锤 pneumatic dth hammer ; pneumatic dth
泡沫潜孔锤 foam dth hammer
液动潜孔锤 down-the-hole hammer
空气潜孔锤钻进 Air DTH
本文主要论述了空气潜孔锤跟管取心钻进规程。
This paper discusses the procedures of DTH hammer and core drilling with casing.
碟形弹簧的载荷变形关系直接影响潜孔锤系统振动特征。
Disc spring load-deformation characteristics can directly affect pneumatic DTH hammer system vibrations.
在水文水井中，气动潜孔锤钻进仍可发挥它高效率、高速度的作用。
The air-driven down-hole hammer drilling is still very effective and speedy in well drilling in karst limestone area.
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