以下为句子列表：
英文: A fault diagnosis mothed for hydro-generator units has been put forward according to their vibration frequency spectrum characteristics.
中文: 摘要针对水轮发电机组振动的频谱特点，提出了基于小波包分析的水轮发电机组振动的故障诊断方法。
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英文: A filter whose transfer function is matched with the frequency spectrum function of input signal.
中文: 其传递函数与输入信号的频谱函数相匹配的一种滤波器。
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英文: It is a truth universally acknowledged that radio-frequency spectrum is scarce in the U.S.
中文: 在美国，无线电的频谱不足是公认的事实。
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英文: Meanwhile through analyzing the characteristic of the frequency spectrum of real seismic load, the influence of sismic load's feature period on dynamic response result of the grotto rock 15 revealed.
中文: 并通过对地震荷载的频谱特性分析，揭示了地震荷载的特征周期对锚索加固石窟围岩的动力响应结果的影响。
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英文: Practice shows that the application of frequency spectrum characteristics to the evaluation of IP anomalies caused by sulfide mineralized bodies (chalcopyrite) and graphite-bearing dolomitic marble is effective.
中文: 实践证明，利用频率谱定性评价硫化物矿化体（黄铜矿）与含石墨白云质大理岩激电异常源取得较佳效果。
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