Asymmetric reverse osmosis (ro) polyamide (pa) composite membrane may be modified by means of solvent processing technique into pervaporation (PV) membrane for separating organic aqueous solution.

非对称性的反渗透(RO)聚酰胺(PA)复合膜可以通过溶剂处理方法改性成为渗透汽化(PV)分离有机物水溶液的均相膜。

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Separating the factors that contribute to climate change from the things that help reverse it is not always easy because sometimes they're one and the same.

要严格区分导致气候恶化的因素和有助于气候改良的因素并不容易，因为有时这两种因素是合二为一的。

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Mechanical systems like skimmers, centrifuges, and reverse osmosis machines can go a long way towards separating oil from water.

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