名词
中文翻译：闭环回路研磨机
同义词：
['closed-loop grinder', 'closed-circuit grinder', 'closed-circuit grinder']
例句：
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1. This closed-circuit grinder is designed to clean the surface of metal parts.
这种闭环研磨机被设计用来清洁金属部件的表面。
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2.The closed-circuit grinder was used to remove rust from the old car.
闭环研磨机被用来从旧车上去除锈迹。
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3. The closed-circuit grinder is a useful tool for grinding small parts.
闭环研磨机是打磨小零件的有用工具。