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。
The two spacecraft will link up in orbit.
两艘宇宙飞船将在轨道上对接。
It might seem surprising to think about an item staying in space for that long, but the oldest satellite still in orbit—Vanguard 1—turned 60 in 2018.
想到一件物品在太空中停留那么久似乎令人惊讶，但目前仍在轨道上的最古老的卫星——先锋1号——在2018已年满60岁。
As the cost of getting your own satellite in orbit drops sharply, the risks of irresponsible use grow.
随着将自己的卫星送入轨道的成本大幅下降，不负责任使用卫星的风险也随之增加。
As an organization of volunteers, AMSAT was putting "amateur" satellites in orbit decades before the current CubeSat craze.
作为一个志愿者组织，国际业余卫星组织在当前立方体卫星热潮之前的几十年前就在将“业余”卫星送入轨道。
However, as the cost of getting your own satellite in orbit drops sharply, the risks of irresponsible use grow.
然而，随着将自己的卫星送入轨道的成本大幅下降，不负责任使用卫星的风险也在增加。
As an organization of volunteers, AMSAT was putting "amateur" satellites in orbit decades before the current Cube Sat craze.
作为一个志愿者组织，业余卫星组织将“业余”卫星送入轨道的时间比现在的立方体卫星热潮早了几十年。
For instance, a research group here at Arizona State University recently claimed their developmental small Cube Sats could cost as little as $3,000 to put in orbit.
例如，亚利桑那州立大学的一个研究小组最近声称，他们开发的小型立方体卫星进入轨道的成本可能只有3000美元。
For instance, a research group here at Arizona State University recently claimed their developmental small CubeSats could cost as little as $3,000 to put in orbit.
例如，亚利桑那州立大学的一个研究小组最近称，只需3000美元就能把他们开发的小型立方体卫星送入轨道。
Because the moon's body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.
由于月球阻碍了与探测器的直接无线电通信，中国首先必须把一颗人造卫星送入月球轨道上的一个点，人造卫星可以从那里向航天器和地球发射信号。
One such cost arises when a satellite has to take evasive action and thereby USES up fuel, reducing its life in orbit.
当一个卫星不得不回避时，这一费用上涨了，因此也会用尽燃料，减少在轨道里停留的时间。
Objects in orbit are catalogued periodically rather than tracked continuously.
在轨目标总是定期编目而不是连续跟踪。
Human digestion works pretty much the same in orbit as well, except that stomach contents float a bit high.
人类的消化系统在轨道上也没什么变化，除了胃里的东西会飘得高一点。
What about other big things still in orbit?
如果还有些大东西还在轨道上运行呢？
Q: What about other big things still in orbit?
问：如果还有些大东西还在轨道上运行呢？
That the sandwich stands still, has no speed in orbit anymore.
意思是三明治不动，在轨道中没有速度。
One will carry the crew into space, while the other will lift their equipment and supplies to a rendezvous point in orbit.
其中一个搭载机组成员进入太空，另一个将携带他们的仪器和给养至轨道中的交汇点。
Scientists would like to know if Phobos is a captured asteroid or formed in orbit, and whether it had, or has, water.
科学家们想知道火卫一是被火星捕获的小行星还是在轨道上形成的星体，还想了解火卫一上是否有水或曾经有过水。
The last team to visit that U.S. stationset a world record at the time for longest stay in orbit, 84 days.
最后一批进入美国空间站的宇航员创造了一项最长在轨时间（84天）的世界纪录。
As of 2007, three extrasolar planets have been confirmed in orbit around this pulsar.
直至2007年，在这颗脉冲星周围轨道上已有三颗系外行星被确认。
So we have around 300 different foods and beverages in orbit at the ISS that the crew members can choose from.
因此我们在轨道上的国际空间站里大约有300种不同的食品和饮料可供宇航员选择。
The velocity of the Earth in orbit is about 30 kilometers per second.
地球在轨道里的速度，约为30千米每秒。
The Mars Reconnaissance Orbiter is NASA's most powerful spacecraft currently in orbit around Mars.
目前在火星轨道上运行的火星勘测轨道飞行器是NASA最强大的航天器。
Today almost 900 of the things are in orbit around Earth, operated by more than 40 countries.
如今有40多个国家的近900个人工天体在地球轨道上运行。
This artist's animation illustrates a massive asteroid belt in orbit around a star the same age and size as our Sun.
从这个艺术化的图片可以看到在围绕一个和太阳年龄和大小相当的恒星轨道上有一个巨大的小行星带。
To stay in orbit, an object must be traveling at a constant speed over Earth's surface.
要留在轨道上，一个物体必须以恒定的速度运行于地球表面。
The shuttles have been called down from the starship in orbit, and are being used as troop carriers.
航天飞机从飞船轨道中被调下来当作运兵车使用。
The company already has two scaled-down versions in orbit.
比奇洛的公司已经有两个缩小版在轨道上运行。
The company already has two scaled-down versions in orbit.
比奇洛的公司已经有两个缩小版在轨道上运行。
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