今年,笔者有幸参加了中美合作举办的中国民航高级管理培训班(EMDT)。在美国培训的5个月,使我有机会比较深入地了解美国民用航空运输业的现状和发展方向,在这里就美国建设下一代航空运输系 This year, I was fortunate enough to attend the China Civil Aviation Administration (EMDT) jointly organized by China and the United States. In the five months of training in the United States, I have had the opportunity to have a deeper understanding of the status quo and development direction of the U.S. civil air transport industry. Here I will give a briefing on the U.S. building of the next generation of air transport