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单词 thermionics
释义

WordReference Random House Unabridged Dictionary of American English © 2024
therm•i•on•ics  (thûrm′ī oniks, thûr′mē-),USA pronunciation n. (used with a sing. v.)
  1. Physicsthe branch of physics that deals with thermionic phenomena.
  • see thermionic, -ics 1925–30

Collins Concise English Dictionary © HarperCollins Publishers::
thermionics /ˌθɜːmɪˈɒnɪks/ n
  1. (functioning as singular) the branch of electronics concerned with the emission of electrons by hot bodies and with devices based on this effect, esp the study and design of thermionic valves
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