The paper describes a class of special stochastic chance-constrained programming models used in empty car distribution in railway transportation.
提出一类特殊的随机机会约束模型来求解铁路空车调配问题。
Hump lead speed reducer is a special equipment urgently needed in railway car grouping station of small or medium capacity.
驼峰减速器是当前中、小能力车列编组站驼峰改造过程中急需研制的一种专用调速设备。
Described are the main structure, technical parameters, tank design, testing and trial operation of the mechanical thermal car with special medium for railway transportation.
介绍了特种介质铁路机械保温运输罐车的主要结构、技术参数、罐体设计、试验及试运行情况。
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