随着我国改革开放的不断深入,计划经济逐步向市场经济转变,国内经济以10％左右的速度较平稳地发展。中国民用航空运输事业以高速度发展,近几年除原有国家骨干航空公司外,各地方航空公司相继成立并共同活跃在航空市场上,各航空公司相互竞争局面逐步形成,运输市场的激烈竞争,即将形成客运与客票价,货物、邮件运输与货物、邮件运价的不平衡;收入结算与管理、运输凭证与管理 With the continuous deepening of China's reform and opening up, the planned economy has gradually shifted to a market economy and the domestic economy has developed at a steady rate of about 10%. In recent years, with the exception of the original national backbone airlines, various local airlines have been established and co-active in the aviation market. The competition among airlines has gradually taken shape and the fierce competition in the transport market , Is about to form a passenger and passenger fares, cargo, mail transport and cargo, mail tariff imbalance; income settlement and management, transport documents and management