北京铁路地下直径线
beijing railway underground connecting line
乌鲁木齐铁路局及沿线地区
WuLuMuQi Railway Department
铁路线路
railway route
railway lines
rail track
Railway line
railway track
highway or railway horizontal alignment
railroad line
high-speed railway
Railway
铁路线路保护监控装置
integrated protection and control device for railway substation
北疆铁路地区
Railway areas of North XinJiang
光缆线路地标图
optical fiber cable linemap