机票数码多可知其中意人们外出时经常乘坐飞机，但很多人对机票上的一些数字及英文字母不知其意，我们特请中国国际航空公司的同志解答这些问题。自中国民航政企分开后，成立了九大国内航空骨干企业，它们分别是：＂１＂＂ＣＡ＂代表中国国际航空公司，总部设在北京；＂２... The number of tickets is much more than the number of people who are interested in taking planes when they go out. However, many people are unaware of some numbers and letters on the tickets. We would like to ask Comrades of Air China to answer these questions. Since the separation of China’s civil aviation administration and enterprises, nine major domestic aviation backbone enterprises have been established. They are: “1” and “CA” on behalf of China International Airlines; its headquarters are in Beijing; “2...