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关注：1
2013-05-23 12:21
求翻译：钢筋混凝土拱桥前10阶频率、周期和振型特点是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
钢筋混凝土拱桥前10阶频率、周期和振型特点
问题补充： |
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2013-05-23 12:21:38
正在翻译，请等待...
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2013-05-23 12:23:18
Former 10 reinforced concrete arch bridge, cycle frequency bands and Chun-type features
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2013-05-23 12:24:58
Reinforced concrete arched bridge first 10 step frequency, cyclical resonance oscillation characteristic
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2013-05-23 12:26:38
Top 10-stage frequency, time of reinforced concrete arch bridge and vibration characteristics
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2013-05-23 12:28:18
正在翻译，请等待...
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