| Chinese | English |
| 地下铁路 | underground railway An electric passenger railway operated in underground tunnels (在地下隧道运行的电动客运铁路。) |
| 铁路 | railway A permanent track composed of a line of parallel metal rails fixed to sleepers, for transport of passengers and goods in trains (由安装在枕木上的平行的铁轨组成的永久性轨道，为了用火车运输乘客和物品。) |
| 铁路交通 | rail traffic The movement and circulation of vehicles transporting goods and people on railroad systems (铁路系统用交通工具运输物品或人。) |
| 铁路网络 | railway network The whole system of railway distribution in a country (在一个国家中分布的所有铁路系统。) |
| 铁路车辆 | railroad vehicle |
| 铁路运输 | rail transport Transportation of goods and persons by railway (用铁路运输物品或人。) |
| 高速铁路 | high-speed railway The term "high-speed traffic" encompasses all trains running at speeds over 200 km/h but also trains running at 200 km/h if the terrain, population density or economic reasons do not justify higher speeds ("高速运输"这个术语包含了所有时速在200公里以上的列车，但也包括某些因地域限制、人口密度或经济理由而不允许较高车速时，其时速维持在200公里的列车。) |
