aeronautical radio navigation
aeronautical radio navigation land station
aeronautical radio navigation satellite service
aeronautical radio navigation service
航空无线电导航服务
航空无线电助航业务
航海无线电助航业务
航空助航业务
aids to navigation radio control
amplitude radio navigation system
Global Radio Navigation System
ground radio navigation aid
international marine radio aids to navigation
International Meeting of Marine Radio Aids to Navigation
International Meeting on Radio Aid to Marine Navigation
International Meeting on Radio Aids to Marine Navigation
国际无线电海上导航会议国际无线电助航设备会议
国际无线电助航设备会议国际无线电海上导航会议
Japanese Committee for Radio Aids to Navigation
marine radio navigation
maritime radio navigation land station
maritime radio navigation service
maritme radio navigation mobile station
Radio Aids to Navigation