将聚氨酯丙烯酸酯齐聚物(PUA)与过氯乙烯(CPVC)共混制成渗透汽化膜并用来分离乙醇水溶液。

The UV Curing polyurethane (PUA) was blended with chlorinated polyvinyl chloride (CPVC) for Pervaporation membranes, which were used to separate ethanol water mixture.

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采用高浓度醇溶液处理羊栖菜粉、稀酸提取、减压浓缩、乙醇分级沉淀和冷冻干燥等单元操作，可以获得褐藻糖胶产品。

The fucoidan product was obtained by pretreatment of algae powder with high concentration ethanol, diluted acid extraction, concentration under vacuum, ethanol precipitation and lyophilization.

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用蒸馏水或乙醇水溶液抽提试样中的水溶性酸或碱，然后用酸度计或指示剂对抽提物进行测定。

It USES distilled water and alcohol to refine water soluble acid and alkali of sample and then test the extractive with PH indicator.

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