Free trajectory - didn't even go into orbit.
自由轨道—还没有进入轨道。
NASA's Mercury probe Messenger last Thursday became the first spacecraft to go into orbit around Mercury.
上周，美国宇航局的信使号水星探测器成为历史上第一个进入水星轨道的飞行器。
Russian space experts will pick one of the two men, both Muslims, to go into orbit on September 2 next year.
俄罗斯航空专家将从两人中挑选一名于明年9月2日进入太空。
NASA's Mercury probe Messenger has become the first spacecraft to go into orbit around the closest planet to the Sun.
美国国家航空航天局(NASA)的信使号水星探测器成为有史以来第一个到达水星轨道的空间飞行器。
The flights would be the first to give nonprofessional astronauts the chance to go into orbit aboard a spacecraft launched from the United States.
这也是第一次让非专业宇航员有机会乘坐美国发射的航天器进入太空轨道。
In time, we will want to dispatch spacecraft that will go into orbit around these alien planets, land robots on their moons, and even return rock and soil samples back to Earth.
迟早，我们将发送飞船进入环绕那些陌生行星运转的轨道，让机器人在它们的卫星上降落，甚至将岩石和土壤样品送回地球。
They could go into lunar orbit or into solar orbit halfway between the Earth and Venus, or one day even land on the moon.
他们可能飞到月球轨道或者地球与金星之间的太阳轨道，甚至有一天降落在月球上。
I now go into an elliptical orbit because the new velocity is no longer the right velocity for a circular orbit.
我现在要进入一个椭圆形轨道，因为新的速度已经，不是圆形轨道中的速度。
When America returns to the moon, four astronauts will ride in Orion to lunar orbit and then all of them will move into the Altair lunar lander to go explore the moon.
当美国重返月球时，四位宇航员将乘坐猎户飞船飞向月球轨道，然后全部进入牛郎星登月器去探测月球。
But it is much bigger and is designed to go into a lower orbit with the most powerful cameras and remote sensing instruments ever sent to a planet.
但这架飞船非常庞大，必须进入略低的轨道，并配备着前所未有的最大功率的摄像机和远程感应设备。
But it is much bigger and is designed to go into a lower orbit with the most powerful cameras and remote sensing instruments ever sent to a planet.
但这架飞船非常庞大，必须进入略低的轨道，并配备着前所未有的最大功率的摄像机和远程感应设备。
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