英语词汇“second-class ore”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	second-class ore
释义	second-class ore second-class ore [′sek·ənd ¦klas ′ȯr] (mining engineering) An ore that needs some preliminary treatment before it is of a sufficiently high grade to be acceptable for market. Also known as milling ore.
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