string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E5%AE%89%E8%A3%85%E8%AE%A1%E9%87%8F%E5%93%AA%E4%B8%AA%E8%80%81%E5%B8%88%E8%AE%B2%E5%BE%97%E5%A5%BD => Failed to connect to 125.88.227.171 port 38114: Connection refused"
一造安装计量哪个老师讲得好
