... earth-approaching comet 近地彗星 earth-approaching object 近地天体 earth-crossing asteroid 越地小行星 ...
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earth-approaching object 近地天体
an approaching object 渐近的物体
We must develop the means to secure the longest possible warning of an approaching object, as well as its likely trajectory and impact zone.
FORBES: Space: Our Ticket to Survival
The first officer saw a bright object ahead of the plane -- the planet Venus -- and mistook it for the approaching C-17.
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