This can be considered as a typical example of integrating theory with practice in the projection geometry teaching.
此内容可以作为射影几何教学中理论联系实际的典型例题。
It put forward an effective new method to resolve the inverse position by using the conversion of coordinates and projection in analytic geometry, the method was simulated and verified by MATLAB.
运用解析几何中的坐标变换和投影，得出一种有效求解位置反解的新方法，通过MATLAB软件对该方法进行了仿真和验证。
The projection drawing of assembly has been a big headache for stu dents when learning techniques of geometry drawing and engineering drawing.
组合体的投影作图，一直是学生在学习画法几何和工程制图当中的一大问题。
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