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介绍了利用旋转变换进行物体三维显示的基本原理，并利用其编制了线切割自动编程系统中上下异面图形校验显示程序，取得良好效果。
The basic principle of three - dimensional display of objects by using rotation transformation is introduced. And the program of checking and displaying the top and bottom isobaric surfaces in the automatic programming system of wire - cutting is compiled, which achieves good results.