英语词汇“precession of the equinoxes”是什么意思，“precession of the equinoxes”的读音、用法及例句翻译-烛光网

词汇	precession of the equinoxes
释义	precession of the equinoxesn.Astronomy（名词）【天文学】 A slow westward shift of the equinoxes along the plane of the ecliptic, resulting from precession of Earth's axis of rotation, and causing the equinoxes to occur earlier each sidereal year. The precession of the equinoxes occurs at a rate of 50.27 seconds of arc a year; a complete precession requires 25,800 years.分点岁差：指二分点沿着黄道平面向西的缓慢移动，它由地球中轴旋转的岁差而造成，并能导致二分点每个恒星年都提早出现。分点岁差出现的差率为每年50.27弧秒；一个完整的岁差需25,800年
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