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Equinoctial Year

n. the time for the earth to make one revolution around the sun, measured between two vernal equinoxes

1、[天]分至年

... 分区子午圈 zone meridian 分至年 equinoctial year 分至月 tropical month ...

2、分至年

...equinoctial colure 二分圈equinoctial year 分至年equinoctial tide 分点潮 ...

天文学

测绘科学技术

n.the time for the earth to make one revolution around the sun, measured between two vernal equinoxes

同义词：solar yeartropical yearastronomical year

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