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对行列式搜索法进行了改进，使其能在实数范围内解流固耦合振动方程的特征对，而不必解复特征值．而且计算量与一般的行列式搜索法也差不多．
The determinant search method has been improved to make it possible to uncouple the feature pairs of the solid-coupling vibration equation in the real range without having to solve the complex eigenvalues. And the amount of calculation is similar to the general determinant search method.