9382| 30
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[结构振动] 固有频率是角频率么? |
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发表于 2007-5-30 15:45
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具体公式是这样的
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发表于 2007-5-30 16:12
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发表于 2007-5-30 16:14
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发表于 2007-5-31 11:30
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发表于 2007-5-31 16:08
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发表于 2007-5-31 17:01
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发表于 2007-5-31 17:25
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