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。
Europe's SMART-1 entered lunar orbit in 2003, and the ESA wants to go back.
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。
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.
这幅图像是环月轨道探测照相机(LROC)拍摄的，它包括一对窄角照相机和一个广角照相机。
This image was taken by the Lunar Reconnaissance Orbiter camera, or LROC, which consists of a pair of narrow-angle cameras and a single wide-angle camera.
箭头所指的看上去像新形成的环形山明显要亮的多，因此在克莱芒·蒂娜环月轨道探测器所拍摄的蓝光和近红外合成照片中就会显得更蓝。
This fresh-looking lunar crater (arrowed) appears significantly brighter, and thus inherently bluer, in a Mosaic of blue-light and near-infrared images from the Clementine spacecraft.
重点考察了月球重力场误差、观测量精度、初始时刻的先验轨道误差以及观测资料类型等对环月飞行器定轨精度的影响。
Especially, the effects of lunar gravity, observation accuracy, orbital error and observation data types on the orbital determination accuracy of the lunar orbiter have been carefully investigated.
计算结果表明，若发射环月卫星，必须进行多次中途轨道修正。
The computing result indicates that multiple midway trajectory correction should be done while a circumlunar satellite is being launched.
计算结果表明，若发射环月卫星，必须进行多次中途轨道修正。
The computing result indicates that multiple midway trajectory correction should be done while a circumlunar satellite is being launched.
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