congruence class

例句：

1. 1. The teacher explained the concept of congruence class to the students.
   老师向学生们解释了一致类的概念。
2. 2.In mathematics, a congruence class is a set of numbers that have the same remainder when divided by a certain number.
   在数学中，一个一致类是一组数的集合，这些数除以某个特定数字时余数相同。
3. 3. The researcher found that the congruence class of the molecules had a significant impact on their properties.
   研究人员发现，分子的一致类对其性质有显著影响。