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电钻


电钻是机械工业、建筑工业和装修行业常用的钻孔、打螺丝钉、起螺丝钉的工具。十九世纪奥地利人Arthur James Arnot和William Blanch Brain将电动机和钻子合装在一起,发明了最早的电钻Specifications for registration of patent by William Blanch Brain and Arthur James Arnot titled - Improvements in electrical rock drills coal diggers and earth cutters。

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电钻diàn zuàn
电动的钻汉译英
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