string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%98%B2%E6%B0%B4%E5%B1%82%E5%AE%8C%E6%88%90%E5%90%8E%E8%93%84%E6%B0%B4%E9%AB%98%E5%BA%A6%E4%B8%8D%E5%BA%94%E5%B0%91%E4%BA%8E%E5%A4%9A%E5%B0%91 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
防水层完成后蓄水高度不应少于多少
