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- ground based aircraft navigation aids 飞机地面导航设备
- They can be ground based or orbiting around the Earth. 望远镜亦可固定在地面或在太空中绕地球运行。
- 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。
- air base navigational aid 农业共济保险制度
- The Impact of Solar Winds on Navigation Aids. 太阳风对导航辅助设备的影响。
- 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。
- Unlike ground based command sites that are vulnerable to attack,the E-4B has the mobility to escape direct assault. 不像易受攻击的地面指挥所，E-4B具有躲避直接攻击的机动能力。
- 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。
- Ground based anti-air like Bullfrogs and Striker VX's can be taken out if you have numbers on your side. 如果你拥有数量优势的话，地基防空武器如牛蛙和打击者VX之流是可以被消灭的。
- 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 data sets include the images from Landsat and ERS satellites as well as some ground based soil and plant measurements. 这些数据包括一些实测的土壤和植被的数据以及陆地卫星Landsat和欧洲遥感卫星ERS遥感影像。
- The validity problem of active multi-decoy to ground base radar system is studied. 摘要研究了有源多假目标等欺骗性电子干扰对地基防御雷达系统的有效性问题。
- The objective of this thesis is to develop a general obstacle segmentation algorithm for use on board a ground based unmanned vehicle (GUV). 本研究的最终目标是利用建构口腔舌头模型，来研究生理语音构音的机制。
- 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。
- Aircraft with HF datalink can fly polar routes and maintain communication with ground based systems (ATC centers and airline operation centers). 安装有高频数据链系统的航空器能够执行极地航路飞行，并保持与地面系统的联系（如空中交通管制中心和航空公司的运行控制中心）。
- Some Vestian surface features have been resolved using the Hubble Space Telescope and ground based telescopes, e.g. the Keck Telescope. 使用哈柏太空望远镜和地基的望远镜，例如凯克望远镜，一些灶神星的表面特徵已经被辨认出来。
- Discussion on the Ground Base Treatment Alternatives of the Primary Material Yard Along the Yangtze River of Nanjing Steel Co. 南钢江边一次料场地基处理方案探讨。
- Since 1980 when it was established, CASC has imported more than 500 commercial aircraft and wide range of ground support equipment, including communications, navigation aids, ATC systems, weather observation and forecast systems and special vehicles etc. 自一九八零年以来，先后进口了各种民用飞机500多架，以及大量的通信、导航、空中交通管制、气象测报、特种车辆等安全保障和机场配套设施。
- Methods A ground based research was(undertaken) using a clinostat to simulate microgravity,and rat pheochromocytoma(PC12) cells used as neuronal cell model. 方法以大鼠嗜铬细胞瘤(PC12)细胞作为神经细胞模型,利用水平轴回转器模拟微重力效应。
