two-step purification是什么意思


中文翻译二段洗涤

网络释义

1)two-step purification,二段洗涤2)third wash,三段洗涤3)first wash,一段洗涤4)multistage washing,多段洗涤5)washing method of washing-drying-washing,二次洗涤6)deacetylation by interval washing,分段洗涤法

用法例句

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