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abrasives and abrasive products
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abrasives and abrasive products
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磨料磨具
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abrasives and abrasive products
磨料磨具
磨料和磨具的总称。磨料是在磨削、研磨、抛光、钻切等机械加工过程中起切削作用的颗粒状或粉粒状无机非金属晶体材料。磨具是以磨料为核心切削材料制成的用于磨削、研磨、抛光、钻切等加工的定形或不定形复合材料工具。
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community conserved areas
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Community Correction Law of the People's Republic of China
community corrections
community corrections worker
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community emergency preparedness
community emergency response capacity
community emergency response team
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