string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9F%BF%E5%B1%B1%E6%B3%A8%E5%AE%89%E5%B8%88%E9%85%8D%E5%A4%87%E8%A7%84%E5%AE%9A => Failed to connect to 14.18.117.71 port 38220: Connection refused"
矿山注安师配备规定
