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- air navigation aid and telecommunication facilities on the airport 飞机场通讯导航设施
- air navigation aid and telecommunication facilities on the airport 飞机场通讯导航设施
- Air Navigation Aids and Electronics 航空电子类
- 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
- Tactical Air Navigation Aid 战术空中导航辅助设备
- air navigation aid 助航设备
- 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
- The Impact of Solar Winds on Navigation Aids. 太阳风对导航辅助设备的影响。
- A glove-based navigation aid for blind and visually impaired people wins awards for a team of Cambridge students. 专为盲人和视力受损人士设计的导航手套为几个剑桥大学的学生赢得了众多奖项。
- Such navigation aid for the sea of information would be highly useful only in complex contexts such as global change. 这种信息之海的领航援助，只有在全球变迁这种复杂议题下才会非常有用。
- The Automatic Identification System(AIS) is a new kind of navigation aid and its installation has been mandatory by the IMO MSC 73 conference. 船舶自动识别系统(Automatic Identification System,简称AIS)是一种新型的船舶辅助导航设备,国际海事组织已通过AIS强制性安装议案。
- civil air navigation aids 民航导航设备
- 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。
- Web course developed by the platform can provide students with learning style, learning materials and navigation aid which fit their features and needs. 该平台开发的网络课程能提供学习者适合他们特征和需要的学习方式、学习内容和导航帮助。
- The Automatic Identification System(abbreviated as AIS)is a new navigation aid,which is tobe mandatory for the installment on ships by the MSC73 Resolution,IMO. 船舶自动识别系统(Automatic Identification System,简称 AIS)是一种新型的船舶辅助导航设备，IMO MSC73会议已通过 AIS 强制性安装议案。
- 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。
- Air Transportable Pulse RADAR Navigation Aid 可空运的脉冲雷达导航设备
- Methods: Precision, time requirements, and number of scout images for repositioning the fluoroscope, with and without navigation aid, were recorded on 20 test-rig and 3 phantom setups. 方法：应用导航技术和非导航技术重新定位检查器的准确度、需求时间和投射次数被记录在20个实验设备和3个模型装备上。
