Three analogue method of track irregularity was introduced.
介绍了三种轨道不平顺的模拟方法。
With modern transportation condition, track management must consider maximum and standard deviation of irregularity.
在现代运输条件下，要求轨道管理同时兼顾峰值和标准差。
With modern transportation condition, track management must consider maximum and standard deviation of irregularity.
在现代运输条件下，要求轨道管理同时兼顾峰值和标准差。
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