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.
用传统的测量方法不能得到端面圆跳动误差的准确值。
The correct value of the end circular run-out error can not be obtained in the traditional measuring method.
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