The instrumentzero feature can compensate for any remaining thermoelectric EMF, provided it is relatively constant.
如果热电动势相对为恒定的话,使用仪器的消零功能也能够补偿任何剩余的热电动势。
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In other cases, it can either be subtracted from the reading by using the REL (zero) feature or simply canceled out by using built-in zero suppression if the instrument has this feature.