1.
Will it be on the right course?
飞行轨道是否正确？
2.
Automated Design and Simulation of Gravity-Assist Trajectories for Deep Space Probe
深空探测行星借力飞行轨道自动设计与仿真
3.
lunar orbiter spacecraft
月球轨道宇宙飞行器
4.
The first flight of a space shuttle into orbit took place in 1981.
1981年首次将航天飞机送进轨道的飞行。
5.
Transition trajectory planning and guidance for orbital bombing vehicle
轨道轰炸飞行器过渡段轨道设计与制导
6.
The other part will orbit the planet.
另外一部分在轨道上进行环绕飞行。
7.
Reentry Trajectories Simulation of Sub-orbital Flight Vehicle in Atmospheric Environment
大气环境中的亚轨道飞行器再入轨迹仿真
8.
Ascent Trajectory Optimization and Fast-Reconstruction for Suborbital Launch Vehicle
亚轨道飞行器上升段轨迹优化与快速重规划
9.
A problem developed during the second orbit.
在第二周轨道飞行时，发生了一个问题。
10.
Agenaclass lunar orbiter
阿琴那型月球轨道飞行器
11.
Extended Duration Medical Program
延时轨道飞行器医学方案
12.
The spacecraft is in orbit (ie moving in orbit) round the moon.
该航天器在绕月球轨道上飞行.
13.
a linkup of two orbiting spacecraft.
轨道上两个太空飞行器的会合
14.
How many spacecraft have orbited around the moon?
有多少宇宙飞船围绕月球轨道运行过？
15.
Orbit Determination of the First Chinese Lunar Exploration Spacecraft CE-1;
“嫦娥一号”探月飞行器的轨道计算研究
16.
Spacecraft Formation Flying Based on Halo Orbit;
基于Halo轨道的航天器编队飞行
17.
Something that orbits, especially a spacecraft that orbits a planet or moon without landing on it.
轨道飞行器循轨道飞行的物体，尤指循一行星或月球运行而不在其上着陆的宇宙飞船
18.
Saturn was to launch the 15th flight, a Moon orbital mission.
第 15次飞行利用萨杜恩将飞船送人月球轨道。