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请问列车上的振动频率与幅值大约在什么范围?谢谢! |
发表于 2008-1-8 00:07
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发表于 2008-1-10 16:21
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发表于 2008-2-7 22:23
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回复 7楼 的帖子
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发表于 2008-2-17 15:50
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