variable resistor 可变电阻
voltage divider 分压器
resistance control 电阻控制
A: Can you adjust the brightness of this lamp?
A：你能调节这盏灯的亮度吗？
B: Yes, I just need to turn the potentiometer slightly.
B：可以，我只需要稍微转一下电位器。
1) 改变阻值的电阻器
2) 电压调节器
3) 电子控制元件
1. 电位器
noun
1. An electrical component that allows for the adjustment of voltage or current by varying resistance.
Synonym: variable resistor