reverse circulation DTH hammer 贯通式反循环潜孔锤
large diameter DTH hammer 大直径潜孔锤
air DTH hammer 空气潜孔锤
foam DTH hammer 泡沫潜孔锤
hollow dth hammer 贯通式潜孔锤
foaming dth hammer 泡沫潜孔锤
dth hammer drilling 空气潜孔锤钻进
pneumatic dth hammer 气动潜孔锤
Owing to spatial confined, the paper enumerates air supply pressure and backpressure which influence the working parameter of the DTH hammer only.
由于文章篇幅的限制，仅列出了气源压力、背压对空气锤工作参数的影响规律。
参考来源 - 空气锤工作机理的计算机仿真研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper discusses the procedures of DTH hammer and core drilling with casing.
本文主要论述了空气潜孔锤跟管取心钻进规程。
This experiment based on WC-70 DTH hammer, study the influence of foam on the DTH hammer.
实验以WC - 70潜孔锤为对象，研究泡沫对风动潜孔锤的影响。
Disc spring load-deformation characteristics can directly affect pneumatic DTH hammer system vibrations.
碟形弹簧的载荷变形关系直接影响潜孔锤系统振动特征。
应用推荐