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  • heliacal

    • 英 [hɪ'laɪəkəl]
    • 美 [hɪ'laɪəkəl]

    释义

    • adj.
      太阳的，和太阳同时或几乎同时出没的

  • 英英释义

    Adjective

    • 1. pertaining to or near the sun; especially the first rising of a star after and last setting before its invisibility owing to its conjunction with the sun;

      "the heliacal rising of the Dog Star"

      "the heliacal or Sothic year is determined by the heliacal rising of Sothis (the Egyptian name for the Dog Star)"

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