compressed air hammer drill
... 掌上型气动锤 Auto Air Hammer 气动锤钻 compressed air hammer drill 敲锈锤气动锤铲边枪 chipping hammer ...
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风动气锤钻 air-driven hammer drill ; driven hammer drill
·2,447,543篇论文数据，部分数据来源于NoteExpress
以上计算和分析的结果，对气动潜孔锤短钻柱系统优化设计和钻井工艺的采用具有实际应用价值。
The optimum design of DTH drilling system and the adoption of drilling technology can be developed based on the data and result.
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