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關注：1
2013-05-23 12:21
求翻譯：引起鋼筋混凝土拱橋結構固有頻率的降低是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
引起鋼筋混凝土拱橋結構固有頻率的降低
問題補充： |
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2013-05-23 12:21:38
Reinforced concrete arch bridge structure caused by the lower natural frequency
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2013-05-23 12:23:18
Arising from the lower reinforced concrete arch bridge structures inherent frequency
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2013-05-23 12:24:58
Causes reinforced concrete arched bridge structure natural frequency depression
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2013-05-23 12:26:38
Structure of reinforced concrete arch bridge natural frequency caused by reduced
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2013-05-23 12:28:18
Reinforced concrete arch bridge structure caused by the lower natural frequency
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