... track maintenance tools 养路工具 track maintenance work线路维修工作 track man n. 田径运动员 ...
双语例句
1
Maximum track irregularity is the evaluate index in emergency maintenance and standard deviation of section track irregularity is the evaluate index in trackmaintenance 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。
2
The author suggests a new system to do trackmaintenance and repair work separately on Datong-Qinhuangdao Railway Line.