The membrane can be used for concentrating ethanol from dilute ethanol-water mixture through pervaporation process owing to its alcohol-permselective properties.

通过低浓度乙-水的渗蒸发的试验研究，表明该是一种性能较好的新型优。

Some advice regarding chlorinity expressing measure and assessment method in the chloride ion permeability test is proposed.

凝土氯离子渗性试验的氯离子浓度表示和评价方法提出建议。

Studied the water flowing characteristics in gangue used as water-gravel-mixed filling material from one Uranic mine.

摘要利用某铀矿尾矿作为水砂充填料的水流特性研究，针不同粒度的试样，进行常水头渗试验。