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- polar orbit trajectory 极地轨道
- Finally,the relative orbit trajectory and the corresponding changes were analyzed with respect to the J2 perturbation. 最后;针对J2摄动分析了卫星编队相对轨道构形的变化以及相对轨道构形的漂移量和转动量.
- After about sixty days, LRO will enter its operational circular polar orbit, about 31 miles above the moon's surface. 经过大约在60天LRO将进入月球极低轨道，大约处于月球表面31英里。
- LRO's final orbit will be a circular polar orbit approximately 50 km above the Moon's surface (a little over 30 miles). LRO的最终轨道将是一个圆形极地轨道，离月球表面（略微超出30英里处）约50公里。
- LRO will spend at least one year in low polar orbit around the Moon, collecting detailed information about the Lunar environment. LRO将花上至少一年的时间在围绕月球的低极轨道上运转，收集关于月球环境的详细资料。
- A polar orbit. 越过极地的轨道
- The paper discussed a method which automatically detect cloud in polar orbit meteorological satellite images by using visual band reflectance and thermal infrared bright temperature. 本文探讨了利用极轨气象卫星图像可见光波段的反射率和热红外波段的亮温信息进行云自动检测的方法。
- However, Sag DEG still has coherence as a dispersed elongated ellipse, and appears to move in a roughly polar orbit around the Milky Way as close as 50,000 light-years from the galactic core. 然而，人马座矮椭球星系的核心仍然有著松散的长椭圆形凝聚著，并且看似在距离银河核心50,000光年的绕极轨道上运行著。
- Yes, its Moon is an artificial satellite and that is the reason around which its orbital trajectory is to circulate and non elliptical. 是的，它的月亮是一颗人造卫星而且原因是围绕它的轨道运行而且非椭圆形的。
- In order to realize large airspace transfer orbital trajectory of an anti-ship missile, a 3-dimensional virtual target's proportional navigation guidance(PNG) law is proposed. 为了实现反舰导弹的大空域变轨,提出了一种三维虚拟目标比例导引律。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The Polar Orbit Meteorological Satellite in China 中国的极轨气象卫星
- Polar Orbit Environment Satellite 极轨道环境卫星
- Kidwell K. NOAA Polar Orbiter Data User's Guide. 1991. NCDC/SDSD. National Climatic Data Center, Washington,DC. [赵茂盛;符淙斌;延晓冬等.;应用遥感数据研究中国植被生态系统与气候的关系
- Polar orbit meteorological satellite 极轨气象卫星
- polar orbit geophysical observatory 极轨道地球物理观察站
- The latter two will target geosynchronous and polar orbits, where many sensitive US military satellites reside," noted Fisher. 后两项目标将同步和极轨道，在那里许多敏感的美国军事卫星居住， “费希尔指出。
- The spacecraft is in orbit around the moon. 该航天器在绕月球轨道运行。
- The joint program's six orbiters would pack in 14 instruments, roughly twice as many as either military or civilian polar orbiters, and save $1.8 billion. 这个整合型计画的六颗卫星，将装载14种仪器，约为军用或民用绕极卫星的两倍，而且可以省下18亿美元。
