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。
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。
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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