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“南水北调、西气东输、青藏铁路、西电东送”是举世瞩目的四大工程。“西气东输”是从新疆塔里木起铺设 4 2 0 0 km天然气管线直抵上海 ,涉及 9个省、市、自治区 ,三渡黄河 ,一跨长江 ,一期投资即达 12 0 0亿元。“青藏铁路”东起青海格尔木 ,西至西藏拉萨 ,全长 1118km,其中
“South-to-North Water Diversion Project, East-West Gas Transmission Project, Qinghai-Tibet Railway and West-East Power Transmission Project” are the four major projects attracting worldwide attention. “West-East Gas Pipeline” is a project to start a 4 200 km natural gas pipeline starting from Tarim, Xinjiang, to reach Shanghai. It involves 9 provinces, municipalities and autonomous regions, and the Yellow River of Sandu and the Yangtze River. The first phase of investment will amount to 12 billion yuan. “Qinghai-Tibet Railway” East Golmud in Qinghai Province, west of Lhasa in Tibet, a total length of 1118km, of which