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[非线性振动] 急问一个非线性微分方程是否震荡衰减 |
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发表于 2006-12-9 23:11
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发表于 2006-12-10 17:29
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有谁见过方程(1)的非线性系统吗?
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发表于 2006-12-11 18:58
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发表于 2006-12-11 19:25
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发表于 2006-12-14 22:40
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