earthapproaching comet

同义词释义

1)earth-approaching comet,近地彗星2)near-earth comet,近地彗星3)low-altitude,近地4)GROUND PROXIMITY,近地5)near surface,近地表6)near-surface,近地表7)Surface layer,近地层8)low-altitude flight,近地飞行9)Low earth orbit,近地轨道10)LEO,近地轨道