In the calculation of the model parameter of shifting rate of rail transportation, I write standard procedure of MNL model in common use in VB language.
在对轨道交通转移率模型参数的计算中，用VB语言编写了新的MNL模型标定程序。
The feeding speed of shifting unit of welding machine is one of the most important factors of rail continuous flash welding quality.
影响钢轨闪光焊接头焊接质量的因素很多，其中焊机动力柱的送进速度就是重要因素之一。
Flash can be continual and steady, and then, the good welding joints could be obtained by properly controlling feeding speed of shifting unit of rail continuous flash welding.
有效地控制钢轨连续闪光焊的动力柱送进速度，可以使整个焊接过程保持连续和稳定的闪光，从而获得优良的焊接接头。
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