They were confined to low-earth orbit, where they did the unglamorous job of launching satellites or ferrying astronauts to the International Space Station.
他们仅限于在近地轨道运行，在那做着发射卫星或运送宇航员到国际空间站这样毫无任何浪漫色彩的工作。
The rocket made its first flight in 2004 and is capable of launching payloads of up to 24 tons into low-Earth orbit and 11 tons toward the geosynchronous orbits used by communications satellites.
重型火箭在2004年进行首次发射，它可以将24吨重的负载发送到低地球轨道，也能将用于通讯卫星的11吨重的载荷送入地球同步轨道。
In the meantime, it could replace chemical rockets for pushing satellites from low Earth orbit to geostationary orbit.
同时，它可以取代化学燃料火箭来帮助卫星从近地轨道变轨至静止轨道。
Its constellation consists of 66 low earth-orbiting, cross-linked satellites and has multiple in-orbit spares.
它的星座由66个低地球轨道交联卫星组成，并有多个卫星在轨备用。
In that scenario, each collision would generate new debris, causing more debris-generating collisions, until low Earth orbit becomes hopelessly clogged and unusable by spacecraft or even satellites.
在这种情况下，每一次碰撞会产生新的碎片，引发更多产生碎片的碰撞，直到低地球轨道出现无可救药的堵塞，航天器甚至卫星均无法使用。
Over the last half-century, low Earth orbit has become so littered with debris that space agencies and scientists warn of the increasing danger of collisions for satellites and manned spacecraft.
在过去的半个世纪中，近地轨道已经变得杂乱无章、布满残骸，航天部门和科学家们警告说卫星和载人太空船遭遇碰撞的危险越来越大。
These devices are used in satellites that orbit the Earth within the Van Allen radiation Belts and must be able to work in a continuous low-radiation environment.
这些装置用于在“范·艾伦辐射带”内沿一定轨道绕地球运行的卫星上，它们必须能在持续低辐射的环境中正常工作。
This paper makes an undated assessment of the technical and economic feasibility of transferring satellites from low Earth Orbit to Geostationary Orbit using low thrust propulsion.
本文对利用低推力推进装置将卫星从低地轨道转移到静地轨道的可行性在技术上和经济上重新作了评价。
Military function and operation mechanism of low earth orbit satellites are introduced, and technical parameters of low earth orbit satellites are provided.
介绍了典型低轨道卫星的军事作用和运作机理，并给出了当前在轨低轨道卫星的技术参数。
The low earth orbit is mostly occupied by military reconnaissance satellites for it is convenient to collect intelligence information.
由于地球低轨道更利于收集情报信息，大多被军事侦察卫星所占有。
With more and more application fields of Low Earth Orbit satellites, better and better precision of LEO is needed by many people.
随着低轨卫星的应用领域不断扩大，人们对低轨卫星的轨道精度要求越来越高。
The use of low earth orbit satellites helps minimize round-trip-time, which greatly improves the perceived quality of the phone call.
使用低地球轨道卫星，有助于减少往返时间，从而大大提高了感知质量的电话。
Polar-orbiting satellites are low-flying satellites circling the earth in a nearly north-south orbit, at several hundred kilometers above the earth.
极地轨道气象卫星以大致南北方向环绕地球运行。它的轨迹离地面约数百公里。
This paper studies a fault-tolerant control system for a space modular manipulator system mounted on space station or other spacecrafts such as satellites, located in low earth orbit.
研究搭载在空间站或其他近地轨道航天器上的空间模块化机械手系统的容错控制系统。
The Pleiadians have achieved some further small victories in removing plasma scalar weapons from low Earth orbit satellites.
昴宿星人在清除低地球轨道卫星的等离子标量武器方面，取得了一些小的胜利。
With the enhancement of the space militarization, it is necessary to know the present low earth orbit satellites.
随着太空军事化趋势的日益增强，了解和认识当前的低轨道卫星较为必要。
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。
Now in the 1990's it have been growing in using orbits other than the geostationary orbit for telecommunications satellites. It is the best approach to use the Low Earth orbit (LEO) satellites.
1990年初开始提出利用静止轨道以外的其他轨道通信卫星的设想，最好是利用低轨道(LEO)卫星。
It was also keen on a proposal to use Virgin's White Knight launch system to put satellites into low Earth orbit.
同样热衷于利用维珍的白骑士发射系统将卫星送入近地轨道。
The Iridium network uses 66 low earth orbit satellites in polar orbits 485 miles above sea level.
铱网络使用66低轨卫星在极地轨道485公里以上的海平面。
The Globalstar network utilizes 40 low earth orbit satellites orbiting at an altitude of 876 miles.
来自全球网络使用40低轨卫星轨道高度876公里。
The Globalstar network utilizes 40 low earth orbit satellites orbiting at an altitude of 876 miles.
来自全球网络使用40低轨卫星轨道高度876公里。
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