Carborundum™
noun /ˌkɑːbəˈrʌndəm/
/ˌkɑːrbəˈrʌndəm/
[uncountable] (chemistry- a very hard black solid substance, used as an abrasive
金刚砂,碳化硅(用作研磨材料) 词源late 19th cent. (originally US, as a trademark): blend of carbon and corundum
词汇 | Carborundum™ |
释义 | Carborundum™noun /ˌkɑːbəˈrʌndəm/ /ˌkɑːrbəˈrʌndəm/ [uncountable] (chemistry
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