So what we are doing is relying on commercial capability to get us access to low Earth orbit, to get us to the International Space Station.
所以我们所要做的就是依靠商业功能让我们进入低地球轨道，让我们进入国际空间站。
This altered the propagation of GPS signals and slowed the rate of decay of space debris in low Earth orbit.
这样就改变了GPS信号的传播，减小了地球底层轨道上空间碎块的衰减速度。
Space Fence will provide continuous, net-centric space situational awareness by detecting smaller objects in low and medium earth orbit.
太空护栏将通过探测中低地球轨道的小型目标提供持续的网络中心态势感知。
In low Earth orbit, say 220 miles (355 km) up, where most human space travel takes place, a single circuit is completed in a much brisker 90 minutes.
在近地轨道，例如高于地球表面220英里(355公里)处大多数人类太空旅行发生的地方，运行一圈则需要更短的90分钟。
Artwork showing space debris in low and geostationary Earth orbit.
这张作品显示了近地轨道和地球同步轨道上的太空碎片。
The resulting rocket, the most powerful in use by the US Air Force, is capable of lifting over 23,000 kilograms into low Earth orbit, comparable to NASA's Space Shuttle.
该运载火箭是美国空军所有火箭中运载能力最强的，可以将23000公斤的货物送入地球低轨道，可与NASA的航天飞机媲美。
Commercial space companies like SpaceX and Bigelow Aerospace have argued for a larger role for private industry in providing human launch services to low-earth orbit.
类似space X和Bigelow Aerospace那样的商业空间公司则主张，让私营工业在向地球低轨道提供载人发射方面发挥更大的作用。
Questions like these will continue as more and more religiousastronauts travel into space. When is sunset in low Earth orbit ifyou're experiencing a dozen sunrises and sunsets in every 24-hourperiod?
这样的问题在更多的有宗教信仰的宇航员升入太空的时候会越来越多.到底在地球递归道上24小时内有12次的日出和日落 到底那次才算是日落?
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。
If we take "space" to mean a low Earth orbit such as the one traveled by the space Shuttle roughly 160 to 350 miles above Earth, the Great Wall claim fails twice.
如果我们把“太空”定义为较低的地球轨道，比如大概距地面高度160至350公里航天飞机飞行的轨道，有两点可以揭穿长城传言。
The costs continued to rankle with those who thought manned space flight a waste of money, and three decades spent stuck in low-Earth orbit never stopped frustrating those who wanted to go farther.
对那些把载人航天看成虚掷钱财的人来说，航天飞机的成本始终令他们心痛；而对那些梦想着远航的人来说，在近地轨道上浪费的三十年时间令他们心寒。
Space Fence is envisioned as a network of ground-based S-band radars that will detect, track, measure and catalog thousands of objects in low-Earth orbit.
设想中的‘太空篱笆’为地基s波段雷达网络，将可探测、跟踪、测量和分类近地轨道成千上万的太空物体。
NASA should stop travelling to the International Space Station in particular and to “low Earth orbit” in general.
国家宇航局尤其要停止飞往国际太空站，一般的“近地轨道”飞行也要停止。
The Magnum would use the space shuttle launch facilities at Cape Canaveral and could launch 80 tons (81, 280 kilograms) of payload into low Earth orbit (LEO).
“大酒瓶”号将利用卡纳维拉尔角的航天飞机发射装置进行发射，它能运送80吨（81 280公斤）的载荷进入近地轨道。
Esa and other nations are already discussing a next-generation space station that would operate as a base from which to explore space beyond low-Earth orbit;
欧洲航天局和其他国家都已经开始在讨论下一代空间站，以此作为一个基地，去探索超越近地球轨道之外的空间；
In addition, in 2009 the space station increased its capacity from three crew members to six, increasing demand to fly to low Earth orbit.
另外，2009年国际空间站机组成员由3人提升6人，大大增加了当时的近地轨道飞行运力需求。
The firm is developing a space vehicle called Dream Chaser, which could carry six to eight people to and from low-Earth orbit.
该公司正研发叫“追梦者”的航天飞船，该飞船能载6到8人在近地轨道往返飞行。
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。
Finite multiple burn method is used for the transfer from Space Shuttle low earth orbit to the geostationary orbit with low accelerations.
以低加速度从航天飞机的低地球轨道转移到对地静止轨道，需要有限多次点火。
The space agency is due to retire the shuttle fleet this year to focus on developing a new spacecraft that can go beyond low-Earth-orbit .
由于“奋进号”即将退役，美国宇航局将重点研发能够超出低地球轨道的新的宇宙飞船。
China will conduct research into the technologies for low-cost launch vehicles, new upper stage and the reusable space transportation system between the earth and low-earth orbit.
开展低成本运载火箭、新型上面级、天地往返可重复使用运输系统等技术研究。
Shuttle-C is a low cost derivative of the current Space Shuttle and can deliver 45.4 to 68 tons of payload to low earth orbit.
是一种由航天飞机衍变而来的高运载能力、低成本运载系统，它能将45.4～68吨的有效载荷送入低地轨道。
One worry is that constellations of nanosats will mean a big increase in space junk; but, operating in low-Earth orbit, they burn up on re-entry after a year or so.
其中一个担忧是一群微型卫星就意味着太空垃圾大量增加，但是，如果在近地轨道运行，这些卫星就会烧掉或者一年后重新进入轨道。
An experimental satellite weighing 100 kilograms (220 pounds) will be launched into a low earth orbit on July 30 from the Naro Space Centre in Goheung, 475 kilometres (300 miles) south of Seoul.
一颗重达100公斤220磅的实验卫星将于7.30号从位于Goheung市距离韩国首府汉城475公里的南韩Naro宇宙空间中心发射，进入地球低轨道。
As of 2001, nine space stations have been placed in a low Earth orbit and occupied for varying lengths of time.
2001年时，在低地球轨道上安置有九座太空站，运作的时间长短不一。
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。
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。
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