英语词汇“hammer drill, percussion rock drill”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	hammer drill, percussion rock drill
释义	hammer drill, percussion rock drill 凿岩机；以冲击回转方式工作的岩体钻孔机具。包括“气动凿岩机pneumatic hammer drill”、“液压凿岩机hydraulic hammer drill”和“电动凿岩机electric hammer drill”等。
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