Beijing-Zhangjiakou high-speed railway to be finished by end of 2019
Xinhua | 2017-06-29 07:44

 |
Photo taken on June 27, 2017 shows the construction site of Caomaoshan Tunnel on the Beijing-Zhangjiakou high-speed railway line in Xuanhua district of Zhangjiakou, North China's Hebei province.[Photo/Xinhua]
|