《天然气输送的大动脉》介绍了"西气东输"工程的基本知识。把西部的天然气输送到东部来，是一个类似于中国"南水北调"工程的大胆设想。既然可以调水，为何不能调气呢？自2002年7月4日全线开工建设的西气东输工程，是中国迄今为止完成的距离最长、管径最大、压力最高、输气量最大、技术含量最高的输气管道工程。铺设这样一条输气管道的意义，在于能够让东部和西部更加紧密地成为一体，优势互补，同时也可以让资源和人类、 让经济和环境的运行进入一个可持续发展的里程。（Energy "Expressway": West-East Natural Gas Transmission introduces basic knowledge about the West-East Natural Gas Transmission Project. Transmitting the natural gas from the west to the east is a bold idea just like South-North Water Transmission Project. Since we can transmit water, why cannot we transmit natural gas? On July 4th, 2002, the West-East Natural Gas Transmission project was initiated along the whole line and, since then, is the longest, largest natural gas pipeline that China has finished so far and that can bear the most pressure, transmit the largest amount of natural gas and represent the most advanced technologies. Building such a pipeline can help connect the east with the west more closely, and enable the two regions to draw on each other's advantages, and make resources and human beings as well as economy and environment develop in a sustainable way.）