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字词 金刚砂
释义 金刚砂jīngāngshā
1.指碳化硅,纯的为无色晶体,硬度很大,质脆。工业上用做研磨材料。{carborundum; silicon carbide; emery; corundum. Pure silicon carbide is a colourless crystal, hard and brittle, and used as an abrasive in industry.}
2.用做磨料的金刚石、刚玉、碳化硅等的统称。{general term for diamond, corundum, silicon carbide, etc. used as an abrasive}‖也叫also钢砂{gāngshā}。
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更新时间:2025/6/30 21:02:24