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南昆铁路是国家“八五”、“九五”重点建设工程。东起广西南宁,西至云南昆明,北接贵州红果,全长898.7公里。它不仅是一次性建成的国家一级干线电气化铁路,也是继成昆线之后,我国在西南艰险山区修建的又一条长大干线,工程浩大,艰巨复杂。铁路相对高差达2010米,有些区段桥隧相连,蜿蜒于群山峡谷之中,需要通过无人、无
Nanning-Kunming Railway is a national key construction project of the “Eighth Five-Year Plan” and “Ninth Five-Year Plan”. Nanning, Guangxi from the east, Yunnan Kunming to the west, north of Guizhou red fruit, a total length of 898.7 km. It is not only a state-level trunk electrified railway built in one time, but also another one that has been built in the daring mountainous areas in southwest China after the Cheng-Kun line. The project is huge, arduous and complicated. The relative height of the railway up to 2010 meters, some sections of bridge and tunnel connected, meandering in the mountains and valleys, need to pass no one, no