自备助航设备
self-contained navigational aids
国际船用无线电导航设备国际航海无线电助航设备
international marine radio aids to navigation
国际无线电海上导航会议国际无线电助航设备会议
International Meeting on Radio Aids to Marine Navigation
国际无线电航海助航设备会议
International Meeting on Radio Aid to Marine Navigation
国际无线电助航设备会议国际无线电海上导航会议
International Meeting on Radio Aids to Marine Navigation
内河助航标志
aids to navigation on inland waterways
内陆水道助航标志
inland waterway navigation aids
泵站辅助设备
auxiliary equipment of pumping stations
不需辅助设备的仪表
self contained instrument
程序准备辅助设备
preparation aids， program
program preparation aids
preparation aids
Program
灯光助航设施
Visual aids to navigation