Intersection of plane surfaces and curved solids 平面与曲面立体相交Exercises 练习题Characteristics of intersection lines 截交线的特性请点击相应标题显示其内容请点击相应标题显示其内容请点击相应标题显示其内容请点击相应标题显示其内容The method of finding intersections求截交线的方法Procedure of drawing intersections求截交线的步骤21.Characteristics of intersection lines 截交线的特性截交线的特性截交线的特性截交线的特性Cutting plane 截平面截平面截平面截平面Intersection line 截交线截交线截交线截交线请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容Intersection of plane surfaces and curved solids 平面与曲面立体相交 Every point on the seg