城市轨道K组级动车组（动车组）客运列车是一种用来运送通勤者和市郊铁路线的列车的一种类型的列车。

The City rail K set class EMU (Electric Multiple Unit) passenger train is a type of train that is used to haul passengers on commuter and suburban rail lines.

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这条1300公里长的高速铁路线预计将两个城市之间旅行时间裁减到约五个小时，每天有90对子弹头列车运行。

The 1300-kilometer-long high-speed rail line is expected to cut travel time between the two cities to about five hours, with 90 pairs of bullet trains operating each day.

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城市铁路为无缝线路，列车正常运营期间进行隧道下穿施工时对线路变形有严格要求。

Urban rail transit adopts jointless track that has strict requirements on track deformation during its operation when a tunnel construction is underway under it.

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