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1. Oxford American Dictionary

   heliometer

   • IPA[ˌhēlēˈämədər]

   美式

   • n.
     a refracting telescope with a split objective lens, used for finding the angular distance between two stars.

   • noun: heliometer, plural noun: heliometers

2. • 更多解釋

   heliometer

   • IPA[ˌhiːlɪˈɒmɪtə]

   英式

   • n.
     a refracting telescope with a split objective lens, used for finding the angular distance ...

   Oxford Dictionary