无线电通讯暂时中断，无线电管制 radio blackout 无线电广播通讯 radio broadcast communication 无线电广播发射台 radio broadcast transimitting station ..
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In modern radio technology components such as communication, broadcast, television and radar system, the radiation and receiving of the radio waves are inevitably, then antenna is needed.
通信、广播、电视、雷达、导航等无线电技术设备中，都需要有无线电波的辐射和接收，进而离不开天线设备。
Almost 7 million birds are killed each year when they fly into communication towers that broadcast TV and radio and make cellphone conversations possible.
通信塔发送电视和电台信号，让手机对话成为可能，然而每年大约有七百万只鸟类因撞上通信塔而死亡。
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