世界第三条长河———长江 ,号称“黄金水道” ,全长63 0 0千米 ,沟通了华夏大地的东西水上交通 ,但也隔断了两岸的经济往来 ,在高科技飞速发展的今天 ,在长江上建设跨江大桥 ,势在必行。195 7年 ,武汉长江大桥建成 ,结束了长江无桥的历史 ,从北京—汉口的京汉铁路和从广州—武 The third long river in the world --- the Yangtze River, known as the “Golden Waterway,” with a total length of 630,000 kilometers, communicates the water traffic of the East China Sea on the vast land of Huaxia, but also cuts off the economic contacts between the two sides of the Taiwan Strait. Today, with the rapid development of high- Building a bridge across the Yangtze River is imperative. In 1957, Wuhan Yangtze River Bridge was completed, ending the history of the Yangtze River without Bridge. From Beijing-Hankou Beijing-Wuhan Railway and from Guangzhou-Wu