“precursor of the active ingredient”的概念、定义、翻译、参考文献-科学参考

单词	precursor of the active ingredient
释义	precursor of the active ingredient Encyclopedia 医学前体活性成分释 precursor of the active ingredient前体活性成分有些天然药物或中药中的化学成分并无生物活性，但经体内代谢后所产生的代谢产物具有很强的生物活性，即它们中的有效成分。与原生活性成分相对。
随便看	river bed armoring riverbed deformation riverbed intake structure riverbed with heterogeneous habitat structure river biota river bottom tunnel river branching parameter river canalization river capture river cascade hydropower development river channel bed river channel bed form river channel self-adjustment river channel strengthening engineering river chart river closure river connectivity restoration river corridor river crossing and bridge equipment river deity temple river density river disconnection river-dominated delta river dynamics river ecosystem

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