amateur radio communication
American Radio Telegraphists
Aircraft Radio
航空无线电
航空器无线电
飞机无线电接收机
飞机用无线电发射机
artificial radio element
Aeronautical Radio
航空无线电
航空无线电设备
航空无线电通信
航海无线电
肝细胞癌
additional radio regulation
aircraft radio receiver
active radio frequency identification
aeronautical radio range