图论算法 求SAP矩阵的基本思想是图的最短路的问题。 由于铁路的运输费用与线路的长度不是线性关系，必须对铁路网做一些预处理才能套用图的标准最短算法。 -SAP matrix graph theory algorithm for getting the basic idea is to map the shortest path problem. Since the railway transport costs and the length of line is not a line

S1002 Wheel and UIC 60 Rail profiles are plotted by numerical function based form referenced paper : Rail Profile reference from The Dynamics of a Railway Vehicle on a Disturbed Track page 80. Appendix A-S1002 Wheel and UIC 60 Rail p

某铁路局电气化铁道过分相真实模型，其中参数为真实参数，具有应用价值-Excessive relative to the true model for electrified railway