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1.This potentiometer card is used to adjust the brightness of the display.
这个电位计卡用于调整显示屏的亮度。
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2.The potentiometer card was designed to provide precise control over the motor speed.
这个电位计卡被设计用来提供对电机速度的精确控制。
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3. The potentiometer card was installed in the circuit to monitor the voltage levels.
这个电位计卡被安装在电路中，以监测电压水平。