同义词
1)vernal point,春分点2)march equinox,春分点3)Vernal Equinoctial Point,春分点4)Vernal Equinox,春分点5)first point of Aries,March equinox,spring equinox,vernal equinox,春分点（天）6)mean equinox,平春分点7)true equinox,真春分点8)first point of Aries,春分;春分点9)spring equinox,春分;春分点10)local hour angle of aries,春分点的地方时角
