pull-down resistor

例句：

1. 1. The circuit breaker is designed to protect the electronics from power surges by pulling down a resistor.
   断路器的设计是为了通过拉下电阻器来保护电子设备免受电源浪涌的侵害。
2. 2.In this circuit, the pull-down resistor prevents the input signal from passing through the output stage.
   在这个电路中，拉下电阻器阻止输入信号通过输出级。
3. 3. The design of the pull-down resistor ensures that the current flow is controlled and does not exceed the safe limit.
   拉下电阻器的设计确保电流流动受到控制，不会超过安全限制。