Down hole hammer drilling的意思|示意
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井下锤钻
Down hole hammer drilling的网络常见释义
潜孔锤钻进 ... 标配钻杆型号standard drilling rod model 潜孔锤钻进down hole hammer drilling 旋转钻进rotating drilling ...
Down hole hammer drilling相关短语
1、 down-the-hole hammer drilling 风动潜孔锤
2、 pneumatic down-the-hole hammer drilling 风动潜孔锤钻进