A worker checks the rail at the construction site of the Golmud-Korla Railway in northwest China's Xinjiang Uygur Autonomous Region, July 18, 2020. The Golmud-Korla Railway links Golmud in northwest China's Qinghai Province and Korla in Xinjiang. At present, the construction of the railway in Xinjiang is progressing in an orderly manner. (Xinhua/Ding Lei)

A builder works at the construction site of the Golmud-Korla Railway in northwest China's Xinjiang Uygur Autonomous Region, July 18, 2020. (Xinhua/Ding Lei)

Aerial photo taken on July 18, 2020 shows the Golmud-Korla Railway under construction in northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Ding Lei)

A worker directs the operation at the construction site of the Golmud-Korla Railway in northwest China's Xinjiang Uygur Autonomous Region, July 18, 2020. (Xinhua/Ding Lei)

A worker measures wind speed at the construction site of the Golmud-Korla Railway in northwest China's Xinjiang Uygur Autonomous Region, July 18, 2020. (Xinhua/Ding Lei)

A builder works at the construction site of the Golmud-Korla Railway in northwest China's Xinjiang Uygur Autonomous Region, July 18, 2020.  (Xinhua/Ding Lei)

A worker directs the operation at the construction site of the Golmud-Korla Railway in northwest China's Xinjiang Uygur Autonomous Region, July 18, 2020.  (Xinhua/Ding Lei)