“electron gun”的概念、定义、习题解题方法及翻译-物理辞典

单词	electron gun
释义	electron gun A device used in cathode-ray tubes (including television tubes), electron microscopes, etc., to produce a steady narrow beam of electrons. It usually consists of a heated cathode, control grid, and two or more annular anodes inserted in an evacuated tube. The electrons emitted by the cathode are attracted to the final anode, through which they pass. The intensity of the beam is regulated by the control grid and potential differences between the anodes create electric fields that focus the diverging electrons into a narrow beam
随便看	case hardening Casimir effect Cassegrainian telescope cast iron catalytic converter catastrophe theory catenary cathetometer cathode cathode rays cathode-ray oscilloscope cathode-ray tube cathodic protection cation causality caustic Cavendish, Henry cavitation cavity resonator CD CD-I CD-ROM celestial equator celestial mechanics celestial sphere

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。