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The circuits can reject the strong power line interference completely.
电路还能很好地抑制强市电干扰。
The instrument has anti-power line interference ability and is in the advanced technology in domestic.
该仪器具有抗工频干扰能力，在技术上属国内先进水平。
However both the analog and digital notch filter removes the signal component when they eliminate the power line interference, so they are only used in simple biofeedback.
模拟陷波器和数字陷波器由于消除工频干扰的同时也去除了信号成分，一般只在简单生物反馈中使用。
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