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1. Oxford American Dictionary

   coronagraph

   • IPA[kəˈrōnəˌɡraf]

   美式

   • n.
     an instrument that blocks out light emitted by the sun's actual surface so that the corona can be observed.

   • noun: coronagraph, plural noun: coronagraphs

2. • 更多解釋

   coronagraph

   • IPA[kəˈrəʊnəɡrɑːf]

   英式

   • n.
     an instrument that blocks out light emitted by the sun's actual surface so that the corona ...

   Oxford Dictionary