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单词
sidereal month
释义
sidereal month
n.
(名词)
The average period of revolution of the moon around the earth in reference to a fixed star, equal to 27 days, 7 hours, 43 minutes in units of mean solar time.
恒星月:参照固定恒星得出的月亮围绕地球公转的平均周期,用标准太阳时单位计算,相当于27天7小时43分钟
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Democratic-Republican Party
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更新时间:2025/5/2 8:57:05