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2012年7月21日,北京天降暴雨,市区出现严重内涝,部分地区有严重的人员和财产损失,一时之间成为国人关注的新闻热点。现代化大都市在暴雨面前暴露脆弱一面,国外的例子也有不少。2007年7月20日,英国伦敦因强降雨发生内涝,西南部地区积水近60厘米,飞机场和地铁运营受严重干扰,141架航班被取消,25个车站被关闭:2011年8月26日,暴雨袭击日本东京,降雨量达到创纪录的每小
On July 21, 2012, heavy rain fell in Beijing. There was a serious internal crisis in the urban area. There were serious personnel and property losses in some areas, which became a news hot spot for Chinese people. The modern metropolis exposes the vulnerable side in the face of heavy rain. There are also many foreign examples. On July 20, 2007, London, England suffered from heavy rainfall due to heavy rainfall. The water in the southwestern region was nearly 60 centimeters. The airport and subway operations were severely disrupted. 141 flights were cancelled and 25 stations were closed: August 26, 2011 Day, heavy rain hit Tokyo, Japan, and the rainfall reached a record for every small