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  1. 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

    • 更多解釋
    • IPA[kəˈrəʊnəɡrɑːf]

    英式

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

    Oxford Dictionary