The electromechanical gauge ACTS as an ammeter because the gauge reading changes with variations in the sender unit resistance.
机电仪表示一种电表，因为仪表读数在传感元件电阻中变化多样。
The electromechanical gauge ACTS as an ammeter because the gauge reading changes with variations in the sender unit resistance.
机电仪表示一种电表，因为仪表读数在传感元件电阻中变化多样。
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