Two workers of the Tiechanggou repairing team are on their way to repair a damaged part of the safety fence in Maytas windy area along the Karamay-Tacheng railway, in northwest China's Xinjiang Uygur Autonomous Region, Jan. 21, 2021.

Workers of the Tiechanggou repairing team gather in early morning to board a snow removing machine in Emin, northwest China's Xinjiang Uygur Autonomous Region, Jan. 21, 2021.

Aerial photo taken on Jan. 21, 2021 shows a railway track snow removing machine in operation in Maytas windy area along the Karamay-Tacheng railway, in northwest China's Xinjiang Uygur Autonomous Region.

Aerial photo taken on Jan. 21, 2021 shows a railway track snow removing machine in operation in Maytas windy area along the Karamay-Tacheng railway, in northwest China's Xinjiang Uygur Autonomous Region.

Workers of the Tiechanggou repairing team manually remove seriously caked snow on railway tracks in Maytas windy area along the Karamay-Tacheng railway, in northwest China's Xinjiang Uygur Autonomous Region, Jan. 21, 2021.

Wang Tianbin (L) and his workmate of the Tiechanggou repairing team manually remove snow from railway switch in Emin, northwest China's Xinjiang Uygur Autonomous Region, Jan. 20, 2021.

A snow removing machine, with workers on board, slowly pulls out of the garage of the Tiechanggou repairing team in Emin, northwest China's Xinjiang Uygur Autonomous Region, Jan. 21, 2021. (Photos: Xinhua)

Yang Shenghui (R) and his workmate of the Tiechanggou repairing team check the snow removing gears of a railway track snow removing machine in Emin, northwest China's Xinjiang Uygur Autonomous Region, Jan. 21, 2021.