Maximum track irregularity is the evaluate index in emergency maintenance and standard deviation of section track irregularity is the evaluate index in track maintenance machine work.
轨道不平顺最大值用于紧急补修评价指标，区段的标准差用于大型养路机作业的评价指标。
The author suggests a new system to do track maintenance and repair work separately on Datong-Qinhuangdao Railway Line.
建议大秦铁路线路养护维修工作试行养修分离新体制。
The author suggests a new system to do track maintenance and repair work separately on Datong-Qinhuangdao Railway Line.
建议大秦铁路线路养护维修工作试行养修分离新体制。
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