Workers of the China Construction Third Bureau Co., Ltd. pour concrete at the site of the Urumqi Airport expansion project in Urumqi, northwest China's Xinjiang Uygur Autonomous Region, Dec. 3, 2020. The main structure of Section I of the south waiting corridor of the Urumqi Airport expansion project was closed Friday amid cold weather. The airport expansion, also the largest individual-building project so far in Xinjiang, is expected to be completed and put to operation by 2023. (Xinhua/Wang Fei)
