| Chinese | English |
| 地铁列车 | underground train A train for transportation of people, mostly beneath the surface of the ground, in order to lessen the traffic (为减轻交通压力，主要在地面下运行的运送人员的列车。) |
| 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。) |
| 炼铁工业 | iron industry A sector of the economy in which an aggregate of commercial enterprises is engaged in the extraction and refinement of iron ore to produce cast iron, wrought iron and steel (由一些致力于铁矿石开采和提炼以及从事生产铸铁、熟铁和钢的经济部门组成的经济领域。) |
| 钢铁工业 | iron and steel industry Sector of the metallurgical industry dealing with the production of cast iron, steel and iron alloys. Emissions from these industries tend to settle quickly from the atmosphere and can lead to rising concentrations in the soil. The main raw material input to the production process is iron ore. Also recycled scrap is used (涉及铸铁、炼钢和铁合金行业的生产的冶金工业领域。这些行业中排放的废弃物往往迅速进入大气，并可能导致土壤溶液浓度上升。投入到生产过程的主要原料是铁矿石，另外也使用回收的废料。) |
| 钢铁行业 | steel industry Industry that deals with the processing of iron (涉及铁处理的产业。) |
| 铁制品工业 | ironwork industry Industry for the production of iron articles (为铁制品的生产服务的工业。) |
| 铁屑 | iron scrap Waste pieces or disused articles of wrought iron (wrought-iron scrap) suitable for reworking for rolling or forging (浪费或废弃的适用于轧制或锻造的锻造铁(熟铁屑)。) |
| 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。) |
| 非铁有色金属 | non ferrous metal |
| 非铁金属 | non-ferrous metal Any metal other than iron and its alloys (任何不是铁及铁合金的金属。) |
| 非铁金属业 | non-ferrous metal industry Industry that deals with the processing of metals other than iron and iron-base alloys (涉及不非铁和铁基合金等金属加工的产业。) |
| 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。) |
