Europe's SMART-1 entered lunar orbit in 2003, and the ESA wants to go back.
欧洲的“智能1号”2003年就进入了环月轨道，并且欧洲空间局拟定了新的计划。
Orion will operate on its own in lunar orbit, standing by for the return trip to Earth.
猎户舱将独自己在月球轨道运行，等候重返地球。
A successful launch will make India the third Asian nation to place a satellite in lunar orbit.
如果发射成功，印度将成为第三个将卫星送入月球轨道的亚洲国家。
The antenna employs a dual gimbal mechanism to track the earth station when the spacecraft is in lunar orbit.
该天线采用了双万向接头结构，以便航太器在月球轨道跟踪地球站基站。
Being able to operate autonomously in lunar orbit will be a key factor in Orion being able to support longer missions.
猎户在月球轨道自动运行是他能够担当长期使命的一个关键因素。
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。
In fact, this is what almost happens, except that the nodes of the lunar orbit are gradually shifting their orientation in space.
实际上差不多就是这样发生的，只不过月球轨道交点的空间方位有渐移运动。
India's own lunar orbiter descended to about 60 miles in 2008, he said, but was forced to return to a more stable, 125-mile-high orbit.
他透露2008年印度的月球卫星曾下降到60英里处，但又被迫回到了更为稳定的125英里高的轨道上。
A main aim of the lunar motion theory in ancient China is to calculate the longitude of the Moon at the lunar orbit at any given time.
计算月亮的白道经度，是中国古代数理天文学之月亮运动理论的核心内容之一。
The rocket will shoot the craft into the trans-lunar orbit, after which the satellite is expected to reach the Moon in about five days.
该火箭将把这个飞行器送入环月轨道，此后该卫星有望于五天后抵达月球。
India put the Chandrayaan 1 spacecraft into lunar orbit in 2008, a mission with a NASA payload that helped confirm the presence of water on the moon.
印度于2008年将“月球飞船1号”太空飞行器送入了月球轨道，目标是用其搭载的NASA(美国国家航空和航天管理局)探测仪器确认月球上是否有水的存在。
As a result it appeared some 14 percent larger and 30 percent brighter than a Full Moon near apogee, the most distant point in the elliptical lunar orbit.
结果，这导致了比起运行到远地点(椭圆形月球轨道的最远端)时的满月，那天的月亮面积增大14%，亮度增加30%。
Since the orbiter, the Command Module, had already been thoroughly tested, a decision was made in August 1968 to send Apollo 8 into lunar orbit instead.
由于轨道舱和指令舱已经全部测试完成，于是就决定在1968年8月先把阿波罗8号发送到月球轨道。
The spacecraft USES a bipropellant integrated propulsion system to reach lunar orbit as well as orbit and attitude maintenance while orbiting the Moon.
该航太器采用一个整体的二元组推进系统进入月球轨道和维持轨道高度及状态。
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 the satellites will arrive with less relative speed than spacecraft making the trip in three days, which means less fuel will be needed to brake and drop into lunar orbit.
但是相比太空飞船，卫星着陆时需要相对小的速度，这将需要三天的时间，意味着消耗更少的燃料进入绕月轨道。
He remained in lunar ORBIT while APOLLO PROJECT astronauts NEIL A. ARMSTRONG and EDWIN e. BUZZ "ALDRIN, JR., became the first human beings to walk on the Moon's surface."
在阿波罗计划的宇航员尼尔。A .阿姆斯特朗和埃德温。E.巴子·小奥尔德林成为首次在月球表面行走的人的同时，他正停留在月球轨道上。
Unlike earlier lunar missions, Clementine didn't orbit only around the moon's equator.
不像早些时候的月球探测那样，克莱门飞船并不是仅仅沿着月球的轨道飞行。
A so-called Earth Departure stage and Altair lunar lander would sit atop the core stage and be launched into orbit to meet Orion spacecraft carrying moon-bound astronauts.
所谓的地球分离级和牵牛星月球着陆器在核心级之上，被发射进入轨道后，与载有登月宇航员的猎户座太空船会合。
Although much has been made of Chinese lunar ambitions (a second Chinese probe will be launched in 2011), it is its activities in low Earth orbit and around Mars that will be more interesting.
尽管中国的探月工程成果辉煌(2011年中国将要发射第二个月球探测器)，但人们更感兴趣的是其低地球轨道与探测火星的活动。
Although much has been made of Chinese lunar ambitions (a second Chinese probe will be launched in 2011), it is its activities in low Earth orbit and around Mars that will be more interesting.
尽管中国的探月工程成果辉煌(2011年中国将要发射第二个月球探测器)，但人们更感兴趣的是其低地球轨道与探测火星的活动。
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