| 单词 | radio-frequency spectrum |
| 释义 | radio-frequency spectrum (extremely rare) n WORD FAMILY radio-frequency spectrum USAGE EXAMPLESThe money comes from the FCC’s public auction of licenses for access to radio-frequency spectrum, the airwaves used to transmit wireless data to cell phones. BusinessWeek(Dec 18, 2014) n the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television Syn|Hyper radio spectrum spectrum an ordered array of the components of an emission or wave |
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