信号导线短路接地 100%
https://qc.dianpusou.com/tag/6%e4%b8%aa%e6%9c%88%e5%ba%93%e5%ad%98%e8%bd%a6%e4%b8%80%e8%88%ac%e4%be%bf%e5%ae%9c%e5%a4%9a%e5%b0%91%e9%92%b1
信号导线短路接地 100%
https://qc.dianpusou.com/tag/6%e4%b8%aa%e6%9c%88%e5%ba%93%e5%ad%98%e8%bd%a6%e4%b8%80%e8%88%ac%e4%be%bf%e5%ae%9c%e5%a4%9a%e5%b0%91%e9%92%b1