group manifold

例句：

1. 1. The group manifold is a complex structure that can be used for various applications.
   群集多面体是一种复杂的结构，可以用于各种应用。
2. 2.The group manifold has been studied extensively in the field of computer graphics.
   群集多面体在计算机图形学领域得到了广泛的研究。
3. 3.The group manifold is an important concept in the study of topology and geometry.
   群集多面体是拓扑学和几何学研究中的一个重要概念。