Meaning of word 金刚砂
Writing Sheet
Word
Pinyin jīn gāng shā
Phonetic Notation ㄐㄧㄣ ㄍㄤ ㄕㄚ
word Meaning

◎ 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