河南郑州：检修动车保障“双节”运输安全

Group 1 - The core viewpoint of the article emphasizes the importance of maintaining and inspecting high-speed trains to ensure safe transportation during the "Double Festival" period in Zhengzhou, Henan [1][2][3] Group 2 - The maintenance activities are aimed at enhancing the operational safety and reliability of the trains, which is crucial during peak travel times [1][2] - The article highlights the proactive measures taken by the railway authorities to prepare for increased passenger flow during the holidays [3]