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
history of marine navigation
International Marine Radio Committee
marine navigation expert system
Marine Navigation Radar
marine radio communication
marine radio direction finder
marine radio monitoring system
Navy Marine Marine Hydrometeorological Center of the Chinese People’s Liberation Army
aeronautical radio navigation
aeronautical radio navigation land station
aeronautical radio navigation satellite service
aeronautical radio navigation service
航空无线电助航业务
航海无线电助航业务
航空助航业务
航空无线电导航服务