short hole drilling

基本解释浅眼钻凿

网络释义

1)short hole drilling,浅眼钻凿2)pan-holing drill,浅眼凿岩机3)underground blast hole drilling,井下炮眼钻凿4)churn drill,凿钻5)short-hole drilling,浅孔凿岩6)mortising bit,榫眼凿

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