Sequential distinguish of structure sound resource in complex sound field.

复杂声场中结构声源的层次识别。

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A new approach is presented for feature extraction from sound signals generated by the structure sound radiation in frequency domain using modal frequency.

提出了一种基于模态频率的声信号频域特征信息提取方法，并将该方法用于堆垛机结构的冲击载荷分类识别研究。

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With a sound financial structure in place and plenty of federal money to carry it through the year, G.M. has no excuses left if it continues to struggle in the marketplace.

如果能有到位、健全的财政结构和大量的联邦资金帮助通用度地今年，那时公司还在市场上继续垂死挣扎的话，那么已经没有任何借口了。

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According to Mr Bryan, who runs the college's architectural stone conservation course, the structure is sound but work is needed to slow its rate of decay.

BBC: Rebecca Fountain in Bath

"The existing tower structure is sound, and as such there is an option to retain the tower but accept that it will never operate as a ride again, " he said.

BBC: Rhyl Skytower may still have a future but not as a ride

But the basic structure is sound.

WHITEHOUSE: The White House