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1.This diamond lapping machine is very efficient in polishing diamonds.
这台钻石抛光机在抛光钻石方面非常高效。
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2.The diamond lapping machine was used to smooth the surface of the diamond.
钻石抛光机被用来平滑钻石的表面。
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3.The diamond lapping machine is a crucial tool for jewelry making.
钻石抛光机是珠宝制造中不可或缺的工具。