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单词 heliacal setting
释义

heliac /hēˈli-ak/ or heliacal /hi-līˈə-kəl/

adjective
  1. Solar
  2. Coincident with that of the sun, or as nearly as could be observed
ORIGIN: Gr hēliakos, from hēlios the sun

helīˈacally adverb

heliacal rising noun

The emergence of a star from the light of the sun

heliacal setting noun

Its disappearance in it

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更新时间:2024/11/11 18:54:02