楼主: 凌绝顶
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[非线性振动] 系统的固有频率与外激励有关吗? |
发表于 2010-11-5 06:15
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发表于 2010-11-5 16:59
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发表于 2010-11-6 06:26
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发表于 2010-11-6 22:07
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