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Percussion borer
archit. 冲击式钎子钻机
percussion borer
bridg.constr. 冲击钻头
el. 冲击钻机
eng.geol. 凿岩机; 风钻
hydroel.st. 冲击钻
tech. 冲击式钻机; 冲击式钎子

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