英语词汇“black copper”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	black copper
释义	WordReference Random House Unabridged Dictionary of American English © 2024 black′ cop′per, [Metall.] Metallurgya regulus of 95-percent-pure copper, produced in a blast furnace by smelting oxidized copper ores.
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