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1概述在社会不断进步,经济日益增长以及运输技术逐渐提高的条件下,综合利用和发展各种运输方式的问题,日益受到各国的重视。如何充分发挥各种运输方式的技术经济优势和功能,使其合理分工、协调发展,力求达到最经济
1 Overview The problem of comprehensive utilization and development of modes of transport has drawn increasing attention from all countries under the conditions of continuous social progress, increasing economic growth and increasing transportation technology. How to give full play to the technical and economic advantages and functions of various modes of transportation so that they can make rational division of labor and coordinate development so as to achieve the most economical