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。
Object: Set up a method of isolation and purification of early pregnancy factor (EPF) from human pregnancy sera and get pure EPF, then attempt to prepare monoclonal antibodies.
目的：建立一条从孕早期妇女血清中分离纯化早孕因子(EPF)的技术路线，获得高纯度的EPF，并对制备抗epf单克隆抗体进行阶段性的初步尝试。
Methods: Orthogonal experiment design and single factor tests were used in optimizing the extraction and purification technology of Rhizoma Gastrodiae by measuring transition probability.
方法：以天麻药材指标性成分天麻素的转移率为指标，采用正交试验设计和单因素考察相结合的方法对天麻药材的提取、精制工艺进行优化。
It is concluded that controlling the external pollution resource is the key factor to guarantee self-purification ability of river.
说明控制外源污染是河流保证自我修复能力的关键。
METHODS Indicated by the content of sennoside A, the conditions of residue solvent extraction and resin purification were determined by single factor trial.
方法番泻苷A为指标，以单因素考察确定药渣溶剂提取与树脂精制条件。
METHODS Indicated by the content of sennoside A, the conditions of residue solvent extraction and resin purification were determined by single factor trial.
方法番泻苷A为指标，以单因素考察确定药渣溶剂提取与树脂精制条件。
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