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[材料力学] 一个物体的刚度跟它所受的约束有关吗? |
发表于 2007-10-20 14:37
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发表于 2007-10-20 14:50
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发表于 2007-10-20 21:45
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回复 #8 wanyeqing2003 的帖子
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发表于 2007-10-20 22:13
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发表于 2007-10-21 01:39
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发表于 2007-10-21 07:35
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