分析了含杂质晶格振动模频率相对于完整晶格振动模频率的变化。
The local mode frequency and the local vibration are also analyzed particularly.
将车辆模化为七自由度振动系统，采用频域法进行随机响应计算。
The vehicle is modelled as a vibration system with seven degrees of freedom.
将车辆模化为七自由度振动系统，采用频域法进行随机响应计算。
The vehicle is modelled as a vibration system with seven degrees of freedom.
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