“activated cathode”的概念、定义、翻译、参考文献-科学参考

单词	activated cathode
释义	activated cathode [`ak·tǝ´vād·ǝd `kath´ōd] ^ELECTRONICS A thermionic cathode consisting of a tungsten filament to which thorium has been added, and then brought to the surface, by a process such as heating in the absence of an electric field in order to increase thermionic emission.
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