The projection of the special points on the intersection line of cylinder with oblique cylinder , of cone with half sphere and of oblique cylinder with cone are determined with the analytic method.
本文用解析法确定圆柱与斜圆柱、圆锥与半球及斜圆柱与圆锥的交线上特殊点的投影。
2
The relationship between the oblique line and every projection plane included Angle, and It's application on problems proposed and solved were discussed in the paper.
本文论述了一般位置直线与各投影面的夹角相互关系问题及其在命题、解题方面的应用。
3
Stage projection; obliqueprojection on plane screens, drawings and nomograms for use in practice.