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圆与圆面有什么区别
更新时间: 2020-07-05 00:00:00  

它们的区别在于:圆是一种几何图形,指的是平面中到一个定点距离为定值的所有点的集合。这个给定的点称为圆的圆心。圆是平面上的曲线图形,是一个轴对称图形。圆面则是指圆线以及里面的一个平面。是立体概念,即部分或全部的某种球面。

关键词: 什么 区别

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