...写代发 关键词：铁路运输经济；铁路防洪；应急物资储备；多目标规划；选址 [gap=1180]Keywords: railway transportation economy; railway flood prevention; emergency materials reserve; multi-objective plan; l..
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铁路运输经济安全是国民经济安全的基础。
Security in railway transportation economy is the foundation of national economy security.
近年来远东铁路运输经济效益较低，面临着许多困难。
In recent years, the Far East railway transportation has remained a lower economic benefit and faced many difficulties.
本文的研究内容可以归纳为三个主要方面：第一，铁路运输经济特征分析；
The contents of this paper can be summed up to three main respects: a) the economic characteristics analysis on railway transportation;
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