radio coverage meaning in English

无线电覆盖
无线电设备作用范围

And public interest is stimulated by extensive television , newspaper and radio coverages
与此同时，电视、报纸和广播里的大量报道更是刺激了人们对体育的兴趣和爱好。
The main features of this service are speed , cheap rates , and the guarantee that the message will reach the target person , even if he is out of radio coverage or his phone is turned off
这一服务的主要特性是迅速、价廉并能保证消息会到达目标用户（哪怕他在信号覆盖范围之外或已关掉电话）。