传统的测量方法难以可靠确定叶片振型。
But the traditional measuring method can hardly decide the vibration pattern of blades.
传统的测量方法难以可靠地确定叶片的振型。
It is difficult to reliably determine blade's vibration mode shape with conventional measurement method.
准确地测量叶片实际振动的频率和振幅已成为透平机械的一个重要研究方向。
Exact measurement for the actual vibration frequency of the blade was the focus.
因此，全息测量被广泛应用于叶片振动的实验研究。
Thus, holography has been applied to the experimental research on blade vibration.
本文对小麦植株叶片保卫细胞长度进行了测量。
本文对小麦植株叶片保卫细胞长度进行了测量。
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