地质史神话般地为我们描绘了一个不可思议的沧海变桑田的事实:很久很久以前,现今青藏高原还是一片海洋,叫做“特提斯海”。慢慢地,从遥远的南边漂来一块大陆——“冈瓦纳古大陆”,与欧亚板块相撞,成就了“喜马拉雅造山运动”——地质史上最重大的事件之一。从此,就像美女头顶盘起的发髻,地球上隆起了这么一块最高的地方。在地球上最高的地方修建铁路,人们面临的最大技术难题是:它将穿越绵延数百千米的难以对付的多年冻土。 The history of geology has vividly portrayed us the fact that the incredible sea has changed to Kuwata: A long time ago, the present Tibetan Plateau is still a sea called the Tethys Sea. Slowly, a continent floated from the far south - the “Gondwana” continent - collided with the Eurasian plateau and made the Himalayan orogeny one of the most significant events in geological history. Since then, just like the beauty of the top plate of hair, uplift such a piece of the highest place on Earth. One of the biggest technical challenges people face when it comes to building a railway on the tallest place on the planet is that it will cross hundreds of kilometers of unpalatable permafrost.