下图中abcd为两条纬线bce位于同一经线上aed为晨昏线上的三点此时太阳高度为0°ab之间所跨的经度是cd之间经度的2倍 Template




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tomski下图中abcd为两条纬线bce位于同一经线上aed为晨昏线上的三点此时太阳高度为0°ab之间所跨的经度是cd之间经度的2倍 coloring