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单词 thermionic
释义 thermionic
adj. of or relating to electrons emitted from a substance at very high temperature.
Phrases and idioms
thermionic emission the emission of electrons from a heated source. thermionic valve (US tube) a device giving a flow of thermionic electrons in one direction, used esp. in the rectification of a current and in radio reception.
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更新时间:2025/3/10 19:48:00