在相关文献提出的基于矩形窗口裁剪的圆形窗口裁剪算法的基础上，通过判断圆形窗口与待裁线段的位置关系，提出一个免解二次方程的圆形窗口裁剪算法。
Through judging the relation of the position between the circle clip window and the line to be clipped, a new line-clipping algorithm is given based on the correlative literatures.
其外形是9段直线段，其上有主车架连接孔、副车架连接孔和其它相关零件专用孔。
The connecting plate takes the shape of 9 linear sections with main framework connecting holes, auxiliary framework connecting holes and special holes for other related parts arranged thereon.
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