2467| 5
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现有加速度计和力锤,如何测得各阶振型的固有频率? |
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发表于 2007-6-27 20:46
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发表于 2007-6-28 08:50
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谢谢大家的建议和帮助!
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发表于 2008-4-21 20:35
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