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1. Oxford American Dictionary

   polar orbit

   • IPA[ˈpōlər ˈôrbət]

   • n.
     a satellite orbit that passes over polar regions, especially one whose plane contains the polar axis

   • noun: polar orbit, plural noun: polar orbits

2. • 釋義

   n.

   名詞

   • 1. a satellite orbit that passes over polar regions, especially one whose plane contains the polar axis an amateur radio satellite in a polar orbit the agency maintains four satellites, two in polar orbit