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共振试验
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共振试验
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振动试验
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resonance test
共振试验
为了检验被测产品或工件是否会因共振而发生品质上的变化,或为了得到被测件的动力学参数,在被测件共振频率下,按规定幅值的加速度、速度或位移,在规定时间内所作的振动试验。
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community facility
Community Failure
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community governance on poverty alleviation centralized settlement
Community Granaries
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