Zhou Yuying is responsible for the daily inspection of bridges, tunnels, and roadbed equipment for a total of 175.318 kilometers of Longhai, Ningxi, and Nantongpu lines. "I used to be afraid of heights.
After working for 7 years, I had to climb heights almost every day. My fear of heights has been cured," Zhou Yuying said jokingly. The work area was also responsible for comprehensive inspections of 158 bridges, 30 tunnels, 65 hills, and 626 culverts.