| 单词 | humic acid |
| 释义 | humic acid (once / 231752 pages) n WORD FAMILY humic acid: humic acids USAGE EXAMPLESThe Edisto is a "black water" river — the color of black tea because of tannins, or humic acid, released by rotting vegetation. Los Angeles Times(Jul 13, 2014) Naturally occurring organic compounds, such as humic acid, sometimes react with chlorine and can create an antiseptic or astringent taste. BBC(Apr 29, 2013) Lignite coal is the main raw material for Yongye’s humic acid products, according to filings. BusinessWeek(Jun 22, 2011) n a dark brown humic substance that is soluble in water only at pH values greater than 2 the half-life of humic acid is measured in centuries Hyper humic substance an organic residue of decaying organic matter |
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