orbiter

US /ˈɔːr.bɪ.-t̬ɚ/
UK /ˈɔːr.bɪ.-t̬ɚ/
1.

軌道飛行器

a spacecraft that orbits a planet or other celestial body (= a moon, star, etc.):

:
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A radar sounder on the Mars orbiter will let scientists probe beneath the surface.
:
orbitorbital