vernal equinox
短语春分
发音
其它
词形变化
vernal equinoxes
复数
vernal equinoxes
释义与例句
n.
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1.
The moment when the sun appears to cross the celestial equator while tilting towards the observer, taking place in March in the northern hemisphere (March equinox) and September in the southern hemisphere (September equinox).
春分点
春分
天文