normal-mode rejection ratio 正常模式斥拒比
A system with good normal-mode noise rejection can usually remove this noise from the measurement.
具有良好的标准模式噪声抑制性能的系统通常会从测量值中消除该噪声。
This added voltage is mainly power line frequency and its effect on the voltmeter reading will depend upon the normal-mode rejection capability of the meter.
这个相加的电压主要为电源频率的信号，其对于电压表读数的影响决定于电压表的串模抑制能力。
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