variant coefficient equations

• 变系数方程组

variant coefficient equations的用法和样例：

例句

1. The orthogonality relationship is applied to the treatment of boundary conditions to decouple the coefficient equations, and the explicit solutions are obtained.
   并将正交关系应用于可对角化边界条件的处理，实现了求解待定系数方程组的解耦，求得问题的显式封闭解。