artificial satellite

名词 artificial satellite:

1. man-made equipment that orbits around the earth or the moon
   同义词：satellite, orbiter

1. The path of a celestial body or an artificial satellite as it revolves around another body.
   运行轨道天体绕另一天体或人造卫星绕一天体旋转所运行的轨道
2. The first artificial satellite was fired off on October4,1957.
   第一颗人造卫星于1957年10月4日发射升空。
3. The decrease in orbital altitude of an artificial satellite as a result of conditions such as atmospheric drag.
   能量消减人造卫星由于大气阻力等的作用结果，在轨道高度上能量消减