Currently, during the critical flood prevention period of "late July and early August," CR-Zhengzhou is closely monitoring the safety of EMUs during the flood season. They are scientifically developing in-depot maintenance work plans and emergency vehicle replacement plans, focusing on the quality of key equipment maintenance to ensure the utmost safety of EMUs in operation during the flood season. The image shows a mechanic from the Zhengzhou EMU depot recently conducting maintenance on an EMU.