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单词 radiofrequency
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ra•di•o•fre•quen•cy  (rā′dē ō frēkwən sē),USA pronunciation n., pl. -cies. 
  1. Radio and Televisionthe frequency of the transmitting waves of a given radio message or broadcast.
  2. Radio and Televisiona frequency within the range of radio transmission, from about 15,000 to 1011 hertz. Abbr.: RF, rf 
Also, radio frequency. 
  • radio- + frequency 1910–15

Collins Concise English Dictionary © HarperCollins Publishers::
radio frequency n
  1. a frequency or band of frequencies that lie in the range 10 kilohertz to 300 000 megahertz and can be used for radio communications and broadcasting
    Abbreviations: rf, RF
  2. (as modifier): a radio-frequency amplifier
  3. the frequency transmitted by a particular radio station
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