美国电视与无线电无线电工作女性协会
American women in radio and television
货船无线电话安全证书
cargo ship safety radiotelephony certificate
《陆海军联合无线电话电报规程》
Joint Army and Navy Radiotelegraph and Radiotelephone Procedure
无线电数字通信
digital radio communication
无线电数字终端
RDT Radio Digital Terminal
无线数字电视
wireless digital television