Based on the normal mode analysis, the characteristic equations were deduced from the perturbation equations of fluid mechanics.
基于模态分析，从流体力学扰动方程组出发，推导出了特征方程。
Part III: From the result of the investigation of Geography Education Practice Mode in Sichuan Normal University, point out analysis of the existing problems.
第三部分：四川师范大学地理教育实习模式开展现状调研结果分析，指出当前存在的一些问题。
According to social network analysis theory, a large number of abnormal behaviors are always hidden in the normal mode of behavior.
根据社会网络分析理论，异常行为总是隐藏在大量的正常行为模式中。
The nature frequency, normal mode and dynamic response of gear system are studied by theoretical modal analysis method combined with experimental modal analysis method.
采用试验模态分析和理论模态分析相结合的方法，研究了齿轮系统的固有特性和动力响应。
Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed.
基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。
Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed.
基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。
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