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单词射频
例句 DEFINITIVE EXAMPLES 权威例句〔bandwidth〕The numerical difference between the upper and lower frequencies of a band of electromagnetic radiation, especially an assigned range of radio frequencies.带宽:电磁辐射频带中高频与低频之间的数值差,尤指某设定的无线电频率范围美国传统〔radio frequency〕The frequency of the waves transmitted by a specific radio station.射频:某一无线电台发出的电波的频率美国传统〔tuner〕A device for tuning, especially an electronic circuit or device used to select signals at a specific radio frequency for amplification and conversion to sound.调节器,调谐器:用来进行调节的装置,尤指一种电子电路或电子装置,用来选择某一特定发射频率的信号来放大并转换成声音美国传统
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