川藏线是川藏公路的简称。川藏公路是连通四川成都与西藏拉萨之间汽车通行的第一条公路。在此路修通前，千百年来，中国西南部各民族的经济、文化交往枢纽就是逶迤在横断山区和西藏高原的崇山峻岭之间，一条世界上地势最高、路况最为险峻的交通驿道－－茶马古道。
文中以川藏线的交通实际情况为例，介绍了以降低通风工程造价和运营耗能费用为目的的通风设计方案。
A ventilation design with the purpose of reducing project cost and energy expense is introduced in this paper by taking the sichuan -tibet Railway as an example.
翻越雀儿山历来川藏线都是最为传奇险峻的，五月初进藏显然不是最好的时间，很多高寒地带还在下雪。
Across Lentigo mountain The route of Sichuan-Tibet is always the most dangerous and it is obviously not the best time to go to Tibet in May when some higher and colder places are still snowing.
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