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[结构力学] 振动自由度的概念? |
发表于 2007-9-6 09:27
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发表于 2007-9-10 23:25
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回复 #1 caichengtao 的帖子
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发表于 2007-12-25 10:42
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发表于 2007-12-28 20:38
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发表于 2007-12-29 10:49
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发表于 2007-12-30 10:11
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发表于 2008-1-1 14:32
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发表于 2008-5-15 10:01
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发表于 2008-5-19 11:50
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机械能用磁铁来作振动吗?
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