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。
Operation can be conducted after the indicating value of direct current voltmeter of the panel is zero.
待面板的直流电压表的指示值为0时方可进行操作。
Operation can be conducted after the indicating value of direct current voltmeter of the panel is zero.
待面板的直流电压表的指示值为0时方可进行操作。
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