５０年前，西藏在封建农奴制统治下，西藏经济基础设施十分落後，几乎没有现代意义上的工业、交通、能源等，百业待举。５０年後的今天，西藏具备了初步适应市场经济发展需求的基础设施，有力支撑著国民经济的发展。 西藏地处世界之巅，平均海拔４０００多米，高寒缺氧，经济建 Fifty years ago, under the rule of the feudal serfdom, Tibet lagged behind its economic infrastructure with almost no industrial, transportation, or energy resources in the modern sense. Today, 50 years later, Tibet possesses the infrastructure that is initially adapted to the needs of market economy and strongly supports the development of the national economy. Tibet is located at the top of the world with an average altitude of more than 4,000 meters, cold and hypoxia, and economic construction