... normal vibration mode 固有振型; 正常振型 vibration of normal mode 简正振动 normal test 常规试验 ...
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The principal vibration of a simple beam with elastic supports was analyzed and the analytical formulation of normal vibration mode was derived.
给出了弹性支承桥梁和车体的振动方程并通过对具有弹性支座简支梁主振动的分析，得出了梁主振型的解析公式。
The third chapter introduces the harmonic oscillator model, normal mode vibration types and frequency characteristics of infrared spectra.
第三章介绍了红外光谱的谐振子模型、简正振动类型和频率特征。
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