 |
|
Staff members from Guiyang high-speed railway maintenance division thread through a stone gap towards their working point in Southwest China's Guizhou province, Feb 21, 2019. The division's main task is to check and repair the facilities on the railway for high-speed trains threading through Guizhou province where karst landform poses a threat to the security to the passing trains. [Photo by Liu Xu/xinhuanet.com] |
