因此，指纹特征和面部温谱图特征在详细的血管网络和出色的心血管系统结构方面是在初始阶段形成的。

Therefore both fingerprint features and facial thermogram features have their origin in the detailed network of blood vessels and finer structures of the cardiovascular system.

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采用三维谱图提取放电指纹特征，并用人工神经网络来识别不同的放电类型。

The feature of discharge is extracted using the 3D pattern chart and the artificial neural networks is used to recognize the discharge models.

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