If the load resistor was connected directly across the voltmeter input terminals, the current through the relay contacts would cause a voltage drop and the measured cell voltage would be in error.

如果负载电阻被直接连接到伏特计的输入端子，通过继电器触点的电流会产生电压降，测得的电池电压将存在误差。

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Since the leakage current through the zener diodes results in a voltage drop across the resistor, low leakage zener devices are desirable.

由于流过齐纳二极管的泄漏电流会在电阻器上产生电压降，所以希望使用低漏电的齐纳二极管。

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These resistor values should be such that the voltage drop at the maximum measured current will not affect measurement accuracy.

这些电阻器的阻值应当使其在最大测试电流时的电压降不会影响测量的准确度。

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