oxygen containing functional group造句
造句与例句
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- The benefit of peat is that it is usually 2-3 times higher in fulvic acid content, which are the low molecular weight fractions of humic acid that are high in oxygen containing functional groups and soluble at a low pH of < 1.
- It's difficult to see oxygen containing functional group in a sentence. 用oxygen containing functional group造句挺难的
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