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- Precision Approach Lighting System 精密进场照明系统
- Precision Approach Lighting 精确进场照明设备
- The WAAS provides a satellite signal for WAAS users to support enroute and precision approach aircraft navigation. WAAS为WAAS用户提供卫星号以取得精准的航空导航需求。
- We struck approach lighting on take-off, two tyres burst on left main landing gear, we have to dump fuel before returning to land. 起飞时撞进近灯,左起落架两个轮胎爆破,返航着陆前需放油。
- The U.S.Navy announced July 17 that Raytheon Co. has been awarded the $232 Million System Development and Demonstration (SDD) contract for the Joint Precision Approach and Landing System (JPALS). 美国海军7月17日宣布，雷声公司获得了价值为2.;32亿美元的合同，对联合精确进近和着陆系统（JPALS）进行开发和演示。
- Report approaching lights in sight. 看见进近灯报告。
- The program includes the testing and certification of lighting and visual aid equipment, such as runway approach lighting, to applicable FAA standards for safety, performance, and quality. 该计划包括对照明和虚拟辅助设备进行测试和验证，如跑道路径照明，通过测试和验证来达到FAA的安全、性能和质量标准。
- PAPI Precision Approach Path Indicator 精密进近航道指示器
- NASPALS NAS Precision Approach and Landing System 国家空域系统进近和着陆系统
- High-Performance Precision Approach Control Radar 高性能精确进场控制雷达
- modified precision approach radar 改进型精密进场雷达
- ODALS Omnidirectional Approach Lighting System 全向进近灯光系统
- Precision Approach Airfield Radar 精确进场机场雷达
- This thesis approaches Light in August from a new perspective to throw some light on the structure of the novel so as to reveal its plurality and cohesion. 本文拟从新的角度来分析《八月之光》的结构，以揭示其多元性和内聚力。
- Precision Approach and Landing System 精密进场与着陆系统
- Electronic Flash Approach Lighting 电子闪光进场照明
- Precision Approach Interferometer Radar 精确进场干扰仪雷达(英国)
- High Intensity Approach Lighting System 高亮度进场照明系统
- Precision Approach Path Indicator 精确进场航路指示器
- An airborne RPS/INS guiding system is developed to decrease the probability of landing accident and endow it with the ability of precision approaching and landing in complicated condition. 为进一步提高飞机精确进场着陆导引能力,减少着陆事故的发生,研究了基于伪卫星/惯性组合的自主着陆导引技术。
