单词 | Nafion |
释义 | Nafion/ˈnafɪən/ /ˈnafɪɒn/Chemistry noun A trademark for: a perfluorinated polymer containing sulphonic acid groups, used especially as a selectively permeable ion-exchange membrane and as a catalyst for some organic syntheses. Origin1970s; earliest use found in The Official Gazette. Perhaps from Na- + -fi- + -on. |
随便看 |
|
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。