近地彗星

  • 网络near-earth comet;earth-approaching comet
近地彗星近地彗星
  1. 天文学家一共发现了超过10000颗近地小行星,大约100颗近地彗星。

    Altogether more than 10000 near-Earth asteroids , and almost 100 near-Earth comets , have been discovered by astronomers .