改革开放２０年来，中国东部及沿海地区经济获得了长足的发展，但在其发展的过程中，又一直受到能源不足，原材料短缺等诸多“瓶颈”因素的制约。据测算，到２１世纪初，东南沿海５０％以上的能源需要西部输送，６０％以上的原材料要依赖西部供给。西部地区得天独厚的自然资源 In the two decades since the reform and opening up, the economy in eastern China and the coastal areas has made great strides, but in the course of its development, it has been constrained by many “bottlenecks” such as lack of energy and shortage of raw materials. It is estimated that by the beginning of the 21st century, more than 50% of the energy along the southeast coast will need to be transported westwards and over 60% of the raw materials will depend on the supply from the west. Western region blessed with natural resources