man-made equipment that orbits around the earth or the moon
同义词：satellite, artificial satellite
orbiter详细解释
or.bit.er n.（名词）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
