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西气东输管道工程是我国西部大开发标志性工程之一,对我国的能源结构和天然气市场架构变化具有重要意义。“西气”主要是指我国新疆、青海、川渝和鄂尔多斯四大气区生产的天然气;“东输”主要是指将上述地区的天然气输往东部地区。西气东输目前已建成三条长输管线。西一线:起于新疆轮南,途经新疆、甘肃、宁夏、陕西、山西、河南、安徽、江苏、上海以及浙江10省,全长4200公里。西一线于2002年7月正式开工,
The West-East Gas Pipeline Project is one of the landmark projects in the development of western China and is of great significance to the energy structure and the market structure of natural gas in China. “West gas ” mainly refers to the natural gas produced in China’s four major gas regions of Xinjiang, Qinghai, Sichuan and Chongqing and Erdos; “East to East ” mainly refers to the natural gas in the above areas to the eastern region. West-East Gas Pipeline has now completed three long-distance pipelines. West line: starting in Lunnan, Xinjiang, through Gansu, Ningxia, Shaanxi, Shanxi, Henan, Anhui, Jiangsu, Shanghai and Zhejiang 10 provinces, a total length of 4200 km. West line officially started in July 2002,