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单词	electron tube
释义	electron tube noun : an electronic device in which conduction by electrons takes place through a vacuum or a gaseous medium within a sealed glass or metal container and which has various uses based on the controlled flow of electrons Word History First Known Use 1919, in the meaning defined above Kids Definition electron tube noun : a device in which conduction of electricity by electrons takes place through a vacuum or a gas within a sealed container and which has various uses (as in radio and television)
随便看	freightages freighted freighter freighters freighting freightliners freights freijo freirinite freit freits freity Frelinghuysen Fremantle fremd fremdly fremdness fremds fremitus fremituses Fremont cottonwood fremont's nut pine Fremont's pine Fremont's squirrel fremontia

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。