The frequency and the corresponding shape of free vibration are the structural natural characteristics and the important design parameters of structural subjected to dynamic loads.
自振频率及对应的振型是结构的固有特性，也是承受动力荷载结构设计的重要参数。
The frequency and the corresponding shape of free vibration are the structural natural characteristics and the important design parameters of structural subjected to dynamic loads.
自振频率及对应的振型是结构的固有特性，也是承受动力荷载结构设计的重要参数。
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