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单词 mean sun
释义

Definition of mean sun in English:

mean sun

noun
  • An imaginary sun conceived as moving through the sky throughout the year at a constant speed equal to the mean rate of the real sun, used in calculating solar time.

Definition of mean sun in US English:

mean sun

noun
  • An imaginary sun conceived as moving through the sky throughout the year at a constant speed equal to the mean rate of the real sun, used in calculating mean solar time.

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更新时间:2024/12/23 13:49:10