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- civil air navigation aids 民航导航设备
- Air Navigation Aids and Electronics 航空电子类
- Civil Air Navigation Services Organisation 民航导航服务组织
- 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。
- 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。
- 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
- air navigation aid and telecommunication facilities on the airport 飞机场通讯导航设施
- Naval Air Traffic Control and Air Navigation Aids and Landing System 海军空中交通管制和空中导航辅助设备与降落系统
- air navigation aid and telecommunication facilities on the airport 飞机场通讯导航设施
- The Impact of Solar Winds on Navigation Aids. 太阳风对导航辅助设备的影响。
- Huayunkerun Civil Air Defence Equipment Co., Ltd. 华云柯润人防设备有限公司。
- Civil Air Express-Delivery Air Service Co., Ltd. 民航快递航空服务有限公司。
- Civil Air Defense Equipment Installation Engineering Co. 人防设备安装工程公司。
- Tactical Air Navigation Aid 战术空中导航辅助设备
- air navigation aid 助航设备
- The State Council and the CMC exercise leadership over civil air defense nationwide. 国务院、中央军委领导全国的人民防空工作；
- They are already beyond the need for more traditional navigation aids because they are so familiar with the product. 传统的导航助手已经不能满足其需求，因为他们对产品非常熟悉。
- 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。
- Not having proper navigational aids the pilot had been unaware of the changing conditions and had flown the plane right into the eye of the tropical storm. 由于没有适当的导航援助，飞行员不了解周围气候的变化情况，将飞机直接飞入了热带飓风眼内。
- Provides information about how to add menus and other navigation aids to your ASP.NET Web pages. 提供有关如何向ASP.;NET网页添加菜单和其他导航辅助工具的信息。
