... 蒸汽内测量 in-steam measurement 结构内回应谱 in-structure response spectra 不准确；偏差 inaccuracy ...
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The modal matrix expansion of the cross power spectra of the multi-measurement acceleration response in the multi-DOF structure is derived in detail.
详细推导了多自由度结构多测点加速度响应的互功率谱模态矩阵展开式。
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