1.
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
2.
The Characteristics of Near Asteroid Orbital Dynamics and its Implication to Mission Analysis
飞行器近小行星轨道动力学的特点及研究意义
3.
lunar orbiter spacecraft
月球轨道宇宙飞行器
4.
Will it be on the right course?
飞行轨道是否正确？
5.
Dynamics and Application of Spacecraft Formation Flying in Eccentric Orbits;
椭圆轨道航天器编队飞行动力学及应用研究
6.
Spacecraft Orbits Under Continuous Radial Thrust
空间飞行器连续径向推力机动轨道研究
7.
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。
8.
(spaceflight) a trajectory that passes close to a planetary body in order to gain energy from its gravitational field.
（航空）飞行物接近一个行星星体以从其引力场中获取能量的轨道。
9.
made the first orbital rocket-powered flight by a US astronaut in 1962; later in US Senate.
在1962年借助美国一个宇航员制造了第一架轨道式火箭式动力飞机；后来到了美国参议院。
10.
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
11.
Dynamics behavior and simulation of relative trajectories of satellite formation flying
卫星编队飞行的动力学特性与相对轨道构形仿真
12.
The other part will orbit the planet.
另外一部分在轨道上进行环绕飞行。
13.
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
14.
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
15.
A problem developed during the second orbit.
在第二周轨道飞行时，发生了一个问题。
16.
Agenaclass lunar orbiter
阿琴那型月球轨道飞行器
17.
Extended Duration Medical Program
延时轨道飞行器医学方案
18.
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.