The offset voltage will cause an error in the applied stimulus to a device under test or the value measured by the voltmeter.

偏移电压会导致施加到被测装置的激励发生误差，或者使伏特计的测量值发生误差。

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Unless it's corrected by "zeroing," the resulting offset produces an error by adding to the input signal.

如果不进行“调零”修正，所产生的偏置量就会叠加到输入信号上产生误差。

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