求翻译：通过对比声激励和声振激励，振动激励和声振激励的实验结果，发现结构和声场发生了相互耦合，改变了结构的动力学特性，而且耦合程度随频率变化，低频时主要改变了响应幅值，高频时主要改变了结构的固有特性。是什么意思？

Incentives by comparing the acoustic and acoustic vibration excitation, vibrational excitation and acoustic vibration excitation experimental results, the structure of the sound field mutual coupling, changing the structure of the dynamics of the degree of coupling with frequency, low-frequency majo

By comparison sidelights inspired sound vibration excitation, vibration and sound-inspired inspired by experimental results, and find the structure and sound, the mutual coupling, changes the structure of the dynamics and coupling of features, the frequency changes, low-frequency response is a major

Through the contrast sound drove and the sound inspires the drive, the shock excitation and the sound inspires the drive the experimental result, discovered the structure and the sound field has had the mutual coupling, changed the structure dynamics characteristic, when coupling degree along with f

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