金剛砂 (gam1 gong1 saa1) — emery; corundum; carborundum in Cantonese
gamˉ¹金gongˉ¹剛saaˉ¹砂简 金刚砂
Mandarin Pinyin: jin1 gang1 sha1
Meaning of 金剛砂
nounemery; corundum; carborundum
Characters in 金剛砂
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