英语词汇“thermionic emission”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	thermionic emission
释义	Collins Concise English Dictionary © HarperCollins Publishers:: thermionic emission n the emission of electrons from very hot solids or liquids: used for producing electrons in valves, electron microscopes, X-ray tubes, etc
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