中国青藏铁路7月1日正式通车运营。这条线路创下多项“之最”：世界上线路最长的高原铁路、有最高的铁路铺架基地、穿越冻土里程最长、创高原铁路最高时速、有最高和最长的高原冻土隧道、有海拔最高的火车站、有最长的高原冻土铁路桥、筑路大军高原病零死亡,这是人类铁路建设史上前所未有的伟大壮举(图①)。 China Qinghai-Tibet Railway officially opened to traffic operations on July 1. This route has set the highest number of “most”: the longest plateau railway in the world, the highest railroad laying base, the longest mileage across the permafrost, the highest speed in the plateau, the highest and longest plateau permafrost The tunnel, which has the highest altitude railway station, has the longest plateau permafrost railway bridge, and the road building army died of disease and death. This is an unprecedented magnificent feat in the history of human railways (Figure 1).