在线国v免费看|激情五月伊人|电影 未删减完整版 下载免费|伊人成人精品,国产第一av,久久久大尺度,久久久久久网

In the process of twisted-pair construction, does the twisted-pair run through the same pipe as the power line?

release:admin Browse:4932 times

Is not, because the power line in the power at the same time will produce high level electromagnetic interference, will have an impact on the twisted-pair transmission signal.