tropical year造句

"tropical year"是什么意思

造句与例句手机版

During a tropical year the sun moves from vernal equinox to vernal equinox .
在一个回归年内，太阳从春分点转回到春分点。
The tropical year is the interval between two transits of the mean sun through the mean equinox .
回归年是平太阳两次通过平春分点的时间间隔。
It's difficult to see tropical year in a sentence. 用tropical year造句挺难的

相邻词汇

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