充分供氧:让乘客呼吸自如青藏铁路处于海拔高度2828m至5072m之间。缺氧是登上高原旅客的“第一威胁”。长达1142km的青藏线格拉段(格尔木至拉萨)约有960km,平均海拔超过了4000m,旅客必须补充氧气。列车上的多项技术属世界首创,首当其冲的是在客车上采用制氧系统,能提高客车上的 Full oxygen supply: allow passengers to breathe freely Qinghai-Tibet Railway at an altitude of 2828m to 5072m. Hypoxia is the “first threat” to travelers on the plateau. The Qinghai-Tibet Line Glacier (Golmud to Lhasa) which is 1142km long has an altitude of about 960km and an average elevation of more than 4,000m. The passengers must supply oxygen. A number of technologies on the train are the world’s first, the first is the use of oxygen in the bus system, can improve the passenger car