A small train ticket has a story behind it. This ticket is for the C2015 train from Beijing South to Tianjin on February 10th at 8:13. But do you know what's behind this small ticket? Let's go back in time. At 00:40 on February 10th, signal worker Du Litun was testing the voltage of the high-speed rail circuit in Beijing South Station. He ensured that all voltages were within normal ranges to prevent abnormal stops and red light strips. At 1:00 on February 10th, Yang Yong was using an AnBoge small car to perform precise inspections on the high-speed rail line. At 2:30 on February 10th, Sun Ze was performing maintenance on the traction motor of the dynamic train. At 3:00 on February 10th, seven workers were installing bird boxes for the contact net at Beijing West Power Maintenance Station. At 5:00 on February 10th, a mechanic worker was preparing to drive the locomotive.