noun🔗Share可变电阻器，变阻器 An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider."I used a rheostat to dim the lights in my room, turning the knob until the brightness was just right. "我用一个**可变电阻器（变阻器）**来调暗房间里的灯光，转动旋钮直到亮度正好合适。electronicsdevicetechnologyelectricmachineChat with AIVocabulary GamePractice Reading
