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攻克“三大难题”创出多个奇迹在重大工程建设中,往往有一些难点需要突破。青藏铁路是世界上海拔最高、线路最长的高原冻土铁路,极具挑战性和创造性,工程建设面临着多年冻土、高寒缺氧、生态脆弱等三大世界性的工程技术难题,这也是青藏铁路几上几下的重要原因。
Overcome “Three Major Problems” to Create Multiple Miracles In the construction of major projects, there are often some difficulties that need to be overcome. Qinghai-Tibet Railway is the world’s highest altitude, the longest plateau permafrost railway line, very challenging and creative, construction is facing permafrost, cold and hypoxia, ecological fragility and other three world-class engineering problems, which is Qinghai-Tibet Railway a few few important reasons.