radio communication

名词 radio communication:

1. medium for communication
   同义词：radio, radiocommunication, wireless

1. In radio communication, either short or long waves may be used.
   无线电通讯可以采用短波也可以采用长波。
2. Radio communication has annihilated space.
   无线电通讯已消除了空间的阻隔。