carborundum怎麽讀
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- carborundum英語什麽意思：n.【商標】金剛砂，碳化硅。
- carborundum法語什麽意思：專業辭典n.m.【工程技術】碳化硅[商品名]carborundumm.金剛砂，人造金剛砂
