All continuous deformations form a symmetricgroup.
整个连续变形形成对称群。
2
The ellipse rotating symmetricgroup is proposed, which is an Abelian group.
提出椭圆旋转对称群,它是一个单参数阿贝尔群。
3
Compared with PAM (pole Amplitude Modulation) theory, the minimum symmetricgroup theory is more effective in implementation of ac machine pole-changing winding's non-regular arrangements.