flapping frequency

基本解释

Is every bird flapping its wings at the exact same frequency?
每只鸟会以同样的频率扇动翅膀吗？
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High speed digite vedio and image processing were used to analyze the effects of the non-dimensional velocity and the flag aspect on its kinematics, flapping frequency and amplitude.
利用高速摄影和图像处理技术分析了来流速度和展长比对旗帜运动学特征（频率和振幅）的影响规律；
sylx.ustc.edu.cn
Therefore, the main characteristics of this system is a high accuracy, breadth to adjust soon scope, high just a restrict for, and system accuracy primarily suffering construction flapping frequency.
可见，本系统的主要特点是高精度、宽调速范围、高刚度，而且系统精度主要受结构谐振频率的限制。