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[结构振动] [求助]为什么得到的固有频率远远小于0? |
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发表于 2006-3-29 15:36
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发表于 2006-3-29 19:37
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发表于 2006-3-30 11:32
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发表于 2006-3-30 21:01
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回复:(gdq123456)[求助]为什么得到的固有频率远远小...
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发表于 2009-2-28 20:18
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