Also the method that can control horizontal vibration frequency is advanced.
在此基础上，提出水平自振频率的控制方法。
In order not to damage these buildings, the method for determining, in Dagan area, the horizontal vibration wave field of an explosive source is recommended.
为了不影响这些建筑设施的安全，本文介绍了大港地区炸药震源水平径向振动影响场的测定方法。
The vibration modal analysis method and the influent factors of the natural frequency of the rotating rotor of horizontal axis wind turbine rotor blades were presented.
建立了大型水平轴风轮转子／塔架耦合系统的气动弹性模型，推导了转子／塔架耦合系统周期系数运动方程，给出了气动弹性稳定性分析方法。
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