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經線緯線(經線緯線怎么讀)

  • 教育
  • 2023-04-26 13:58

在地球儀上,大家會看到有一些橫的和豎的線,那么這些線是什么意思,又有些什么作用呢?下面我們就一起來認識一下吧!

經線圖

在地球儀上,連接南北極的半圓形的弧線叫做經線。這樣的半圓形的經線有無數條且長度相等,都指示南北方向且相交于南北兩個極點。

緯線圖

在地球儀上,與赤道平行的圓圈,叫做緯線。這樣的緯線有無數條且所有的緯線都相互平行,形狀是一個圓圈(除極點外),緯線長度從赤道向兩極逐漸縮短且指示東西方向。

經緯網

地球上的任何一個點都有一條經線和緯線穿過,利用經緯線就可以辨別方向、確定位置以及計算距離。

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