differential cohomology

例句：

1. 1. The two teams are fundamentally different in their strategies.
   这两支队伍在战略上根本不同。
2. 2. Differential equations are used to model the behavior of systems with multiple variables.
   差分方程用于描述具有多个变量的系统的动态行为。
3. 3. The difference between the two methods is that one involves more experimentation.
   两种方法之间的区别在于一种方法需要进行更多的实验。