adj.二分点的，昼夜平分时的，春分(或秋分)的
n.赤道；春分[秋分]周内的暴风雨

The equinoctial regions are known for their high humidity and abundant rainfall.
赤道地区以其高湿度和丰富的降雨量而闻名。
On the equinox, day and night are of equal length across the equinoctial line.
在春分和秋分时，赤道线上昼夜平分。
Many ancient cultures celebrated rituals during the equinoctial periods to honor the balance of light and darkness.
许多古代文化在春分和秋分期间举行仪式，以纪念光明与黑暗的平衡。
The equinoctial gales are notorious for causing disruptions in maritime navigation.
赤道风暴因其对海上航行造成的干扰而臭名昭著。
The equinoctial sun aligns perfectly with the ancient temple's entrance on these special days.
在这些特殊的日子，春分和秋分时的太阳会完美地与古庙入口对齐。
The equinoctial tides are stronger than usual, affecting coastal ecosystems.
赤道潮汐在这些时期比平常更强烈，影响着沿海生态系统。
During the equinoctial season, migratory birds follow specific routes to their wintering grounds.
在赤道季节，候鸟遵循特定路线前往越冬地。
Equinoctial storms can bring sudden changes in weather, challenging even experienced hikers.
赤道风暴能带来突发的天气变化，即使是经验丰富的远足者也会感到挑战。
The equinoctial line marks the imaginary boundary where the sun is directly overhead at noon twice a year.
赤道线是虚构的边界，一年中有两次太阳会在正午直接位于头顶上方。
Cultures near the equator have developed calendars closely tied to the equinoctial cycles for agricultural planning.
赤道附近的文明发展了与赤道周期紧密相连的日历来规划农业。