It's important to recognize the low-order frequencies and modes of vibration in the course of structural dynamic measurement.
结构的振动测试中，正确识别结构的低阶频率和振型尤为重要。
It's important to recognize the low-order frequencies and modes of vibration in the course of structural dynamic measurement.
结构的振动测试中，正确识别结构的低阶频率和振型尤为重要。
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