·2,447,543篇论文数据，部分数据来源于NoteExpress
The microcontroller's pin connects to ground using pulldown resistor R1 with resistance, typically, of a few hundred kilohms to impress the high-impedance state on the pin.
微处理器管脚用下拉电阻R1与地相连，阻抗典型为几百千欧，在管脚上呈现出高阻状态。
youdao
应用推荐
模块上移
模块下移
不移动