An open curve formed by a plane that cuts the base of a right circular cone.

一个平面与正圆锥体的底部相交而形成的不闭合的曲线。

youdao

An open curve formed by a plane that cuts the base of a right circular cone.

一个平面与正圆锥体的底部相交而形成的不闭合的曲线。

youdao