【摘要】 本文导出了两回转二次曲面轴线平行时,相贯线在对称面上投影的解析式,并据此得出求各相贯线特殊点的作图方法。而且据解析式还可在计算机上绘出相贯线投影的准确图形。更多还原

【Abstract】 In this paper, an analytic expression of the projective intersecting lines on a symmetrical surface has been developed under the condition of parallel axes of two revolute quadratic curve surfaces, and thereby a new graphic method to find out the projective position of special points of intersecting lines obtained. Besides, according to the expression mentioned above an accurate projective curve of intersecting lines can be drawn by a computer.更多还原