一个椭球中心有一个同心的球，球的半径任意，随着半径的变化，二者的交线形状怎样？知乎 Sketch Coloring Page

一个椭球中心有一个同心的球，球的半径任意，随着半径的变化，二者的交线形状怎样？知乎 Template

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tomski一个椭球中心有一个同心的球，球的半径任意，随着半径的变化，二者的交线形状怎样？知乎 coloring

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