| 单词 | discharge |
| 释义 | discharge 1 The conversion of the chemical energy stored in a secondary cell into electrical energy. 2 The release of electric charge from a capacitor in an external circuit. 3 The passage of charge carriers through a gas at low pressure in a discharge tube . A potential difference applied between cathode and anode creates an electric field that accelerates any free electrons and ions to their appropriate electrodes. Collisions between electrons and gas molecules create more ions. Collisions also produce excited ions and molecules (see excitation), which decay with emission of light in certain parts of the tube. |
| 随便看 |
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。