Urban rail transport的用法和樣例：
例句
- Traction calculation of trains is one the important composing of the whole urban rail traffic.
列車(chē)牽引計算是整個(gè)城市軌道交通的重要組成部分。 - The key of developing an integrated public transport system is to improve the fare system of UMT in big cities.
摘要分析了城市軌道交通票價(jià)體系的現狀及存在的問(wèn)題，總結了一體化公交運輸系統的特徵。
