It shows that the viscosity offers only little effect on lower mode of dispersion curve, and it effects on higher mode of dispersion curve with the increasing of damping.

理论计算发现粘弹体的粘滞项对频散低阶模式影响不大，但随着粘滞的增大对高阶模式可产生影响。

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It shows that the viscosity offers only little effect on lower mode of dispersion curve, and it effects on higher mode of dispersion curve with the increasing of damping.

理论计算发现粘弹体的粘滞项对频散低阶模式影响不大，但随着粘滞的增大对高阶模式可产生影响。

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