单词	permatron
释义	permatron noun per·​ma·​tron ˈpərmə‧ˌträn plural -s : a vacuum tube in which the electron flow is controlled by a magnetic field Word History Etymology permanent + -tron
随便看	ozarkian ozarkians ozarks Ozarks, Lake of the ozarkses ozekis ozo ozobrome process ozocerite ozocerites ozokerite ozokerites ozon- ozonate ozonated ozonates ozonating ozonation ozonations ozone ozone hole ozone layer ozone-friendly ozoner ozones

英语词典包含469781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。