guest Moderator 管理成员 注册 2002-10-07 消息 402,424 荣誉分数 76 声望点数 0 2012-10-26 #1 A video taken in 2011 during a routine inspection of the east-end storm sewer that collapsed and caused a large sinkhole in September showed the steel pipe was severely corroded, CBC News has learned. 查看新闻全文...
A video taken in 2011 during a routine inspection of the east-end storm sewer that collapsed and caused a large sinkhole in September showed the steel pipe was severely corroded, CBC News has learned. 查看新闻全文...
