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- air navigation radio aids 航空无线电导航设备
- radio aid to air navigation 无线电空中导航
- Aids to Navigation Radio Control 导航无线电控制辅助设备
- Japanese Committee for Radio Aids to Navigation 日本无线电导航委员会
- 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
- Air Navigation Aids and Electronics 航空电子类
- Economic forces are reshaping the provision of airports and air navigation services. 经济力量正重塑机场与空中导航服务的组织和操作。
- Some 20 major items of air traffic control (ATC) equipment and air navigation facilities including radar sensors,radar data processing and flight data processing systems,navigational aids and communication systems were installed. 20多项主要航空交通管制及导航仪器设施先后完成安装，包括雷达接收装置、雷达资料及飞行资料处理系统、导航仪器及通讯系统等。
- International Meeting of Marine Radio Aids to Navigation 国际航海无线电导航设备会议
- The Observatory was awarded the ISO 9001:2000 certification for its weather services for international air navigation in 2002. 天文台为国际航空提供的气象服务在2002年起获ISO9001:2000认证。
- 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
- Some 20 major items of air traffic control (ATC) equipment and air navigation facilities including radar sensors, radar data processing and flight data processing systems, navigational aids and communication systems were installed. 20多项主要航空交通管制及导航仪器设施先后完成安装，包括雷达接收装置、雷达资料及飞行资料处理系统、导航仪器及通讯系统等。
- International Meeting on Radio Aid to Marine Navigation 国际无线电航海助航设备会议
- security control of air traffic and air navigation aids test 空中交通与导航辅助设施之安全控制试验
- aeronautical radio navigation radio beacon 航空无线电导航信标
- Within the framework of the International Civil Aviation Organization, the HKO is the designated meteorological authority in Hong Kong to provide the weather facilities and services for international air navigation. 在国际民用航空组织的架构下,天文台是香港的气象当局,为国际航空提供气象设施及服务。
- All-Weather Automatic Radio Aids Unit 全天候无线电自动导航设备
- That radio show is still on the air. 那个广播剧还在播送。
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The archers sent their shafts through the air. 弓箭手向空中射出利箭。
