1) downing hole hammer with ream drilling and casting
潜孔锤跟管钻具
2) DTH hammer drilling with concentric simultaneous casing
潜孔锤同心跟管钻具
1.
Analysis and research on accessories intensity of DTH hammer drilling with concentric simultaneous casing;
潜孔锤同心跟管钻具零件强度分析与研究
4) downhole hammer casing drilling method
潜孔锤偏心跟管钻进法
5) DTH hammer drilling with simultaneous casing tool
潜孔锤同心跟管钻进
6) winded hidden hole hammer
风动潜孔锤偏心跟管钻进
补充资料：揲揲锤锤
1.象声词。促织的叫声。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条