重点叙述流星天文学的历史与现状；流星群的地面和空间观测；流星雨观测和理论辐射点；

Especially, the history and status of meteoroid astronomy, the ground-based and space observations of meteoroid streams, the observed and theoretical radiants about meteor showers;

youdao

重点叙述流星天文学的历史与现状；流星群的地面和空间观测；流星雨观测和理论辐射点；

Especially, the history and status of meteoroid astronomy, the ground-based and space observations of meteoroid streams, the observed and theoretical radiants about meteor showers;

youdao