天气预报 > 财经 > 旋转体定义中的定直线叫做
旋转体定义中的定直线叫做
更新时间: 2021-05-08 21:07:07  

1、一条平面曲线绕着它所在的平面内的一条定直线旋转所形成的曲面叫作旋转面;该定直线叫做旋转体的轴;封闭的旋转面围成的几何体叫作旋转体。这个就是旋转体一个基本内容知识。

2、所以旋转体定义中的定直线叫做轴。

关键词: 旋转体 定义 直线 叫做

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