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单词 intermediate frequency
释义

WordReference Random House Unabridged Dictionary of American English © 2024
intermediate frequency, [Radio.]
  1. Radio and Televisionthe middle frequency in a superheterodyne receiver, at which most of the amplification takes place. Abbr.: if
  • 1920–25

Collins Concise English Dictionary © HarperCollins Publishers::
intermediate frequency n
  1. the frequency to which the signal carrier frequency is changed in a superheterodyne receiver and at which most of the amplification takes place
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更新时间:2024/11/13 9:44:44