| 单词 | polyphosphoric acid |
| 释义 | polyphosphoric acid (once / 5909656 pages) n WORD FAMILY polyphosphoric acid n a series of oxyacids of phosphorus Hypo|Hyper metaphosphoric acid a glassy solid acid ([HPO3]n) often used as a dehydrating agent pyrophosphoric acida solid acid formed by reactions of orthophosphoric acid oxyacid, oxygen acid any acid that contains oxygen |
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