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The synthesis processes of polyethyleneglycol diacrylate cross - linker of the super absorbent polymer were studied.
研究了高吸水性树脂 交联剂 聚乙二醇双丙烯酸酯的合成工艺.
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The virus was purified by means of chloroform clarification, polyethyleneglycol precipitation and differential centrifugation.
用氯仿澄清, 聚乙二醇沉淀和差速离心可部分提纯.
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