冬日里检修忙

Group 1 - The article highlights the ongoing maintenance and inspection of heavy railway maintenance machinery in Zhengzhou, China, amidst low temperatures [2][4] - The machinery includes various models such as track cleaning vehicles, tamping machines, rail grinding cars, and stabilizers, which are essential for optimizing railway line quality and ensuring safe transportation [4] - The maintenance team is tasked with completing significant repairs within a tight schedule of 76 days, including 47 level-three repairs, 5 level-four repairs, and 4 special repairs [8] Group 2 - Workers are engaged in various maintenance activities, including axle testing, disassembling bogies, replacing tamping tools, and adjusting coupler pins, demonstrating a high level of focus and teamwork [6][8] - The article also mentions the provision of warm food, such as rock candy pear soup, to the workers in the maintenance workshop, contributing to their comfort during the harsh winter conditions [10]