脑电信号的功率谱分析结果显示了接触组与对照组在一些指标上有差异。

Many indices of EEG power spectrum were different between the exposed group and control group.

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利用功率谱分析噪声信号的特性，利用相干性确定噪声源。

By using coherent analysis, we can define the noise source.

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利用功率谱分析噪声信号的特性，利用相干性确定噪声源。

By using coherent analysis, we can define the noise source.

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