◎ 金刚砂 jīngāngshā
[emery carborundum] 不纯的碳化硅碎粒,硬度高(仅次于金刚石)。工业上用做研磨材料

1.corundum; silicon carbide; emery; emery powder; Carborundum; {材} amorphous carborundum; carborundum grain; diamond grain; electrolen; emery sand

不纯的碳化硅。硬度仅次于金刚石，质脆。工业上用做研磨材料。也叫钢砂。