heliac是什么意思-heliac英文怎么读-英汉词典翻译

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英['hiːlɪæk] 美['hiːlɪæk]

Adjective:

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)"

【近义词】

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