在特定条件下，椭圆锥与平面的截交线为圆。
Under definite conditions, the intersection of an elliptic cone with a plane is a circle.
它为确定截交线的投影范围，准确地绘制截交线，提供了理论依据。
This offers a theoretical ground for setting the region of projection and constructing accurately the lines of intersection.
提出一种将辅助平面旋转某个特定的角度图解正椭圆锥面截交线的方法。
The paper presents the graphic method of solution of the intersection of right elliptic cone with plane by rotation of auxiliary planes at a certain Angle.
本文介绍了图解截交线的三种方法，中心投射法、平行斜投射法、弧线投射法。
Three approaches to the graphic representation for lines of intersection are introduced in this article, namely, central projection, parallel skew projection and arc line projection.
基于对轧件与轧辊截交线的分析，提出了在二维直角坐标系中确定轧件咬入接触点的方法。
Based on analyzing the intersection curve between the rolled-piece and roll, the method of determining the nip point is put forward.
基于对轧件与轧辊截交线的分析，提出了在二维直角坐标系中确定轧件咬入接触点的方法。
Based on analyzing the intersection curve between the rolled-piece and roll, the method of determining the nip point is put forward.
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