原级：orbiter
1. 沿轨道运行之物; 宇宙飞船; 人造卫星：interplanetary 行星间的; 太阳系内的 | orbiters 沿轨道运行之物; 宇宙飞船; 人造卫星 | penetrate 穿透,渗透,看穿
1. 911查询·英语单词
1. Between April 2009 and December 2011, a total of nine BeiDou orbiters were successfully launched into space.
2. The Shenzhou manned spaceships and China's lunar orbiters were all launched on the Long March rockets.
3. China has launched three manned spaceships and two unmanned lunar orbiters in recent years.
4. The Shenzhou spaceships and lunar orbiters were all launched by Long March rockets.
5. The United States and the Soviet Union had competed with each other since 1959 in launching moon orbiters.