英语词汇“humic acid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	humic acid
释义	WordReference Random House Unabridged Dictionary of American English © 2024 hu′mic ac′id, Chemistrya brown, melanin-tinted mixture of polymers, found in lignite, peat, and soils, where it acts as a cation exchange agent: used in drilling fluids and inks. 1835–45
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