Constructors work inside the Guantian Tunnel of the Zhangjiajie-Jishou-Huaihua high speed railway, Central China’s Hunan province, Dec 3, 2018. The 246.6 km-long high speed railway will pass through Zhangjiajie city, Tujia-Miao autonomous prefecture of Xiangxi and Huaihua city with a designed speed of 350 km per hour.[Photo/Xinhua]
Constructors work inside the Guantian Tunnel of the Zhangjiajie-Jishou-Huaihua high speed railway, Central China’s Hunan province, Dec 3, 2018.[Photo/Xinhua]
A constructor works inside the Guantian Tunnel of the Zhangjiajie-Jishou-Huaihua high speed railway, Central China’s Hunan province, Dec 3, 2018.[Photo/Xinhua]