The constant complex module of viscoelastic material is used to calculate the frequency and loss factor of the sandwich pate by the complex eigenvalue method.
粘弹性采用常复数模型，用求解复特征值的方法求得了其固有频率和损耗因子。
The constant complex module of viscoelastic material is used to calculate the frequency and loss factor of the sandwich pate by the complex eigenvalue method.
粘弹性采用常复数模型，用求解复特征值的方法求得了其固有频率和损耗因子。
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