aeronautical radio aids
航空无线电导航设备
standard radio aids
标准无线电导航设备
marine radio aids
船用无线电导航设备
ground radio navigation aid
地面无线电导航设备
International Meeting of Marine Radio Aids to Navigatio
国际航海无线电导航设备会议
international marine radio aids to navigation
国际船用无线电导航设备国际航海无线电助航设备
radio approach aid
进场着陆无线电导航设备
Environment requirements and test methods for ground radio-navigation equipments
GB/T12858-1991地面无线电导航设备环境要求和试验方法
aids to navigation radio contro
无线电操纵导航设备
radio approach aids
无线电进场导航设备
International Meeting on Radio Aid to Marine Navigation
国际无线电航海助航设备会议
aeronautical radionavigation service
航空无线电导航业务
four-course radio range station
四航道无线电导航台
Marine Radio Navigation
船舶无线电导航海上无线电导航
radio or radar navigational apparatus (incl. that for blind approach landings and airport traffic control)
无线电或雷达导航设备（包括盲目进场着陆和机场交通管制用）
radionavigation land statio
无线电导航陆地电台
radio and television aid to navigation
无线电与电视导航工具
talking-down system
无线电导航(着陆)装置