Theoretical analyses show that the one dimensional vibration model of a slender rod can be derived out from the theory.
理论分析表明，细长条的长度伸缩振动模式可由所述理论直接导出。
The introduction of the structure of non-contact vibration sensor improved the durability of the instrument, realizing the two-dimensional vibration testing.
该测震装置引入无触点振动传感器的结构以提高装置的耐用性，实现了二维振动的检测。
From the equation of three-dimensional vibration of structures, the methods of multi-dimensional random mode displacement and mode acceleration have been put forward.
从多维地震动输入下的结构三维振动方程出发，给出了结构多维随机振动的振型位移法和振型加速度法。
From the equation of three-dimensional vibration of structures, the methods of multi-dimensional random mode displacement and mode acceleration have been put forward.
从多维地震动输入下的结构三维振动方程出发，给出了结构多维随机振动的振型位移法和振型加速度法。
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