航空货物运输市场的迅速发展主要取决于国民经济稳步发展和国家出口商品贸易的增长。据有关资料表明，1997年以各种运输方式运输货物的总周转量达3823亿吨公里，比上年同期增长了49％。其小，海运的周转量达1935亿吨公里，比上年上升了8．3％；公路运输的周转量为516．8亿吨公 The rapid development of the air cargo transport market depends mainly on the steady growth of the national economy and the growth of the national export commodity trade. According to relevant information, the total turnover of goods transported by various modes of transport reached 382.3 billion ton-km in 1997, an increase of 49% over the same period of last year. Its small and seaborne turnover amounted to 193.5 billion ton-kilometers, an increase of 8.3% over the previous year; and the turnover of road transport was 51.88 billion tonne-kilometers