2489| 7
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[弹性力学] 弹性力学中变分的问题 |
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发表于 2007-4-16 16:41
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和变分没什么关系,没用到变分
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发表于 2007-4-16 18:30
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回复 #5 hao1982 的帖子
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发表于 2007-5-12 21:53
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发表于 2007-5-27 16:05
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