1348| 3
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[转子动力学] 通过振动测量多级泵的转速的原理是什么呀? |
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发表于 2008-4-3 14:36
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发表于 2008-4-3 15:53
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发表于 2008-4-3 21:56
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可以测量但不能普遍应用
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