equinoctial spring tide分点大潮;二分点大潮
autumnal equinoctial spring tide秋分大潮
autumn equinoctial spring tide秋分大潮
equinoctial circle tide分点潮
low water equinoctial spring tide平均大潮低潮面
vernal equinoctial tide春分大潮
equinoctial circle spring tide分时大潮
Tide equinoctial分潮点