陕西西安：西康高铁全线铺轨正式启动

Core Points - The Xi-Kang High-Speed Railway has officially commenced track laying across its entire line [1][2][3] Group 1 - The Xi-Kang High-Speed Railway is a significant infrastructure project aimed at enhancing transportation connectivity in the region [1][2] - This project is expected to boost local economies and improve travel efficiency between key cities [1][3] - The commencement of track laying marks a critical milestone in the railway's construction timeline [2][3]