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赤道是什么意思

更新时间: 2021-11-12 12:10:27     

赤道是地球表面的点随地球自转产生的轨迹中周长最长的圆周线。它把地球分为南北两半球,其中,以北是北半球,以南是南半球,南北半球的四季是相反的。赤道也是划分纬度的基线,它的纬度为0°,是地球上最长的纬线。

关键词: 赤道 什么 意思

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