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. (Photos: Xinhua)

Railway maintenance workers check track irregularities on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

Aerial photo shows a railgrinder removing irregularities from tracks on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

A railway maintenance worker takes a break while removing irregularities from tracks on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

A railway maintenance worker checks track irregularities on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

A railway maintenance worker checks a track after removing irregularities from it on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

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.

Railway maintenance workers head for a task site on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

Railway maintenance workers head for a task site on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.

Railway maintenance workers go on patrol after removing irregularities from tracks on the Golmud-Korla railway line in northwest China's Xinjiang Uygur Autonomous Region, July 14, 2020.