当电视信号变为数字信号后，许多电视的频率带宽都被闲置下来。 因此，在一个渴望无线资源的国家，这些频带被引向移动接入应用可谓众望所归。
Many of the TV frequency bands have been vacated by TV's move to digital, so, in a country hungry for wireless resources, it was proposed that this spectrum get redirected to mobile access use.
负责本市无线电管理工作；负责对无线电频率资源和无线电台(网)进行统一规划和管理。
To take charge of the municipal radio; to be responsible for the overall programs and administration of frequencies sources and radio stations (nets).
无线频率是稀有的资源，因此无线频率提供商使用多路复用技术通过一个频率发送多个呼叫。
Wireless frequencies are a scarce resource, so wireless providers use multiplexing to send multiple calls over a single frequency.
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