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关注：1
2013-05-23 12:21
求翻译：隔震前和隔震后等效振动周期的比较是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
隔震前和隔震后等效振动周期的比较
问题补充： |
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2013-05-23 12:21:38
Isolation before and after the equivalent period of vibration isolation comparison
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2013-05-23 12:23:18
After the earthquake shock at intervals before and after comparison of equivalent vibration cycle
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2013-05-23 12:24:58
After front separates shakes and separates shakes the equivalent period of vibration comparison
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2013-05-23 12:26:38
Equivalents before and after seismic isolation-isolation vibration period comparison
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2013-05-23 12:28:18
Isolation before and after the equivalent period of vibration isolation comparison
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