经纬�判定“距离” 1根据纬度差定经线长度:纬度1°的实际经线弧长处处相等,大约是111千米,如下图中ab。若两地在同一条经线上,只要知道 Template




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tomski经纬�判定“距离” 1根据纬度差定经线长度:纬度1°的实际经线弧长处处相等,大约是111千米,如下图中ab。若两地在同一条经线上,只要知道 coloring