wireless spectrum短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 🌏无线频谱；无线电频谱 So CR can solve the problem of scarcer and scarcer wireless spectrum resource and the fact of underutilization of licensed spectrum in wireless communication. 因此，认知无线电技术能够解决无线通信的频谱资源越来越紧缺的现状，以及授权频段的频谱利用率较低的事实。361xs