单词 | reverse osmosis |
释义 | reverse osmosis [ri`vǝrs äs`mō·sǝs] CHEMICAL ENGINEERING A technique used in desalination and waste- water treatment; pressure is applied to the surface of a saline (or waste) solution, forcing pure water to pass from the solution through a membrane (hollow fibers of cellulose acetate or nylon) that will not pass sodium or chloride ions. |
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