On the basis of the graphical solution, the article analyses the geometrical relations and the related data, derives theoretically and puts forward a method to draw directly the conjugate axis.
以图解为基础 ,分析空间几何关系 ,进行理论推导和数据分析 ,提出一种垂直圆正等轴测图的画法直接绘制共轭轴法 ,该方法便于掌握 ,误差小 ,作图简
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