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[线性振动] 教材中单自由度解法总觉得别扭,虽然简洁 |
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发表于 2010-11-6 22:01
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发表于 2010-11-7 11:21
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点评
可惜!!
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发表于 2010-11-8 14:20
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发表于 2010-11-8 23:47
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发表于 2010-11-9 14:12
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