Mass freight transportation is one of the main tasks of railways.
大宗货物运输是铁路运输的主要内容之一。
This paper investigates risk evaluation of single-category mass freight transportation in local railway networks.
本文探讨单一品类大宗货物铁路局部运输网络的风险评价。
Finally, through calculation and analysis of train mass for raising speed passenger and freight train, the practical operation and use are illustrated.
文章最后通过具体提速客货列车质量的计算与分析，说明实际操作与应用。
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