jointed track

例句：

1. 1. The engineer designed a jointed track to improve the efficiency of the railway system.
   工程师设计了一套关节轨道，以提升铁路系统的效率。
2. 2. The new jointed track is expected to reduce travel time between cities by up to 30%.
   新的关节轨道预计将减少城市间旅行时间高达30%。
3. 3. The construction of the jointed trackway has been completed ahead of schedule.
   关节轨道道的施工提前完成。