This reveals the inherent fallacy in judging individual purification methods based solely on their average purification factor.
这表明个人净化判断的基础上平均只纯化方法因素的内在谬论。
Silt adsorption comprises an important factor in the purification of fluvial water bodies.
泥砂吸附是研究江河水体净化能力的一个重要方面。
Objective: Set up a method of isolation and purification of early pregnancy factor (EPF) from human pregnancy sera, and get pure EPF.
目的：建立一条从妊娠早期妇女血清中分离纯化早孕因子的技术路线，获得高纯度的早孕因子。
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