Railway maintenance workers check track on Golmud-Korla railway line in NW China's Xinjiang

Photo taken with a drone shows a railgrinder removing irregularities from tracks on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020. Upon its scheduled operation on Oct. 30, 2020, the 1,213-kilometer Golmud-Korla railway line will shorten travel time between Korla in northwest China's Xinjiang and Golmud in northwest China's Qinghai from 26 hours to 12. (Xinhua/Ding Lei)