您要查找的是不是：
- A Multiple Maneuvering Target Tracking Method for Airborne Ground Surveillance Radar 一种机载地面侦察雷达多机动目标跟踪方法
- Airborne Ground Surveillance 机载地面监视
- Under the award, SRA International will provide a low-cost ground surveillance (LCGS) solution for small- to medium-size airports in the National Airspace System. 根据合同，SRA国际公司将为国家空域系统的中小规模机场提供一个低成本地面监视（LCGS）解决方案。
- LCGS provides an added layer of safety by giving air traffic controllers basic ground surveillance for aircraft and vehicles operating on runways and taxiways, SRA International officials said. SRA国际公司的官员说，LCGS通过为在跑道和滑行道的飞机和车辆提供空中交通管制的基本地面监视而增加了更多的安全保障。
- Airborne Ground Fire Location System 机载地面火力定位系统
- Ground Surveillance RADAR System 地面监视雷达系统
- Ground Surveillance and Airspace Control 地面监视与空域控制
- Ground Surveillance and Target Acquisition 地面监视和目标获取
- Ground Surveillance Qualification Course 地面监视资格教程
- Very-Short-Range Ground Surveillance Radar 超近程地面监视雷达
- All-Weather Ground Surveillance Radar 全天候地面监视雷达
- Battalion Ground Surveillance Section 营地面监视分排
- Smoking is forbidden until the plane is airborne. 飞机升空时禁止吸烟。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- The ground was covered with ferns. 地面上长满了羊齿植物。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- The airborne troops spearheaded the crossing of the river. 空降兵在渡河作战中担任先导。
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
- They put some wreathes on the ground. 他们把一些花环放在地上。
