Still others would stand as sentinels in high earth orbit to spot dangerous intruders from our star.
还有一些将作为地球高轨上的哨兵来确定危险入侵者距离我们这个星球的准确位置。
Combined environment which consists of charged particle radiation and ultraviolet (UV) radiation exists in the medium and high Earth orbit.
在中高轨道上，存在着带电粒子辐射、紫外辐照等组成的综合辐射环境。
On the aspect of observation time, it has limited efficiency for low earth orbit target space-based observation, and good efficiency for high earth orbit observation.
在可见时间方面，天基空间目标光学监视系统对低轨目标的监视能力有限，而对高轨目标具有良好的监视性能。
The mirrors could orbit—thousands of miles high—at the same speed as the earth turns on its axis.
这些镜子可以在几千英里的高空以地球绕地轴旋转的速度运行。
This orbit (a high Earth or geosynchronous orbit) means that the satellite will always be directly over the same point on Earth, ensuring a continuous view of the ground.
这条轨道(高地同步轨道)意味着这些卫星总是位于地球上的某点之上，保证对地的持续观察。
The third member of the Great Observatory family, the Chandra X-Ray Observatory (CXO), was deployed from a Space Shuttle and boosted into a high-Earth orbit in July 1999.
钱德拉X射线天文台，排行老三。 1999年7月哥伦比亚号航天飞机搭载升空，运行在高地球轨道上。
The Chinese Long March can put 9.5 tons in low earth orbit, and 5.5 tons in a high one (geostationary transfer orbit).
“长征”能把9.5吨放入低地球轨道和把5.5吨放入一个高轨道(地球同步运行轨道)。
Abstract : High resolution visible earth observation on the Geostationary Earth Orbit(GEO) has a series of unique advantages over that in the other orbits.
摘要 ：在地球静止同步轨道（GEO）上实现高分辨力对地观测，具有一系列独特优点，远为其它轨道所不及。
High resolution visible earth observation on the Geostationary earth orbit (GEO) has a series of unique advantages over that in the other orbits.
在地球静止同步轨道(GEO)上实现高分辨力对地观测，具有一系列独特优点，远为其它轨道所不及。
It is shown selecting suitable parameters of molecular shield on low-earth orbit, we can process super pure materials in extreme high vacuum.
计算结果指出：在近地轨道选择合适的分子屏参数，可以在极高真空环境下加工超纯材料。
A new extreme high vacuum molecular shield lab. On low-earth orbit is designed.
给出了一种新型的近地轨道极高真空分子屏实验室设计。
Atmospheric drag is the main perturbation force on a low earth orbit satellite and is closely related to the variation of high atmospheric density.
大气阻力是低轨卫星主要的摄动力，与高层大气密度的变化密切相关。
Then, once the vehicle had ascended to high-Earth orbit, above about 800 kilometers, the nuclear reactor module would detach from the chemical rocket and start up.
这样，当普通燃料火箭到达地球轨道约800公里高度时，核反应堆舱会脱离化学燃料火箭，并开始工作。
A generalized high performance navigation system is provided using low earth orbit (LEO) satellites.
提供了一种使用近地轨道(LEO)卫星的通用化的高性能导航系统。
The MEO satellites are used in the GNSS space segment and in future will still be the mainstay in this segment possibly with the addition of the HEO (High-altitude Earth Orbit) satellites.
全球导航卫星系统(GNSS)空间段采用MEO轨道卫星，未来将仍然以MEO为主，可能有HEO轨道卫星加入运行。
The MEO satellites are used in the GNSS space segment and in future will still be the mainstay in this segment possibly with the addition of the HEO (High-altitude Earth Orbit) satellites.
全球导航卫星系统(GNSS)空间段采用MEO轨道卫星，未来将仍然以MEO为主，可能有HEO轨道卫星加入运行。
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