relation of homotopy

例句：

1. 1. The study of the relation of homotopy is crucial for understanding the dynamics of fluid flow.
   研究同胚关系对于理解流体流动的动力至关重要。
2. 2.In topology, a homotopy group is a collection of elements that form a group under certain conditions.
   在拓扑学中，同胚群是在特定条件下形成的元素的集合。
3. 3. The concept of homotopy plays an important role in the development of mathematical models for complex systems.
   同胚概念在发展复杂系统数学模型中起着重要作用。