For protein crystallization, the main impact of precipitant is on the solvent.

对于蛋白质的结晶，沉淀剂主要在溶剂上产生作用。

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Solution polymerized styrene-butadiene rubber ( S-SBR ) was fractionated by repeated precipitation method, using redistilled toluene as solvent and ethyl alcohol as precipitant.

本工作用甲苯作溶剂，乙醇作沉淀剂，用沉淀分级法，对溶聚丁苯橡胶（S-SBR）进行了分级。

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The spheroidicity zirconia is prepared by controlling the reactive temperatures, the precipitant reagents and adding additives through a alcohols solvent precipitation method.

采用醇溶剂沉淀法，通过控制温度、改变沉淀剂，加入添加剂等条件制备了椭球形氧化锆。

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