![](http://www.ecns.cn/hd/2019/08/07/71b30786c7c74ca8b2ab2fe8af045f9d.jpg)
Aerial photo taken on Aug. 6, 2019 shows a ceremony held to mark the completion of the New Baishatuo Tunnel in Fuling District of southwest China's Chongqing. The 10.004-km tunnel along the second railway line connecting Chongqing and Huaihua of central China's Hunan Province completed Monday after over three years of construction work. (Xinhua/Wang Quanchao)
![](http://www.ecns.cn/hd/2019/08/07/8c91923c218e40e38478be69761f0b86.jpg)
Aerial photo taken on Aug. 6, 2019 shows the New Baishatuo Tunnel in Fuling District of southwest China's Chongqing. The 10.004-km tunnel along the second railway line connecting Chongqing and Huaihua of central China's Hunan Province completed Monday after over three years of construction work. (Xinhua/Wang Quanchao)
![](http://www.ecns.cn/hd/2019/08/07/73e85def73c3467a902625589825dfc2.jpg)
Aerial photo taken on Aug. 6, 2019 shows the New Baishatuo Tunnel (L) in Fuling District of southwest China's Chongqing. The 10.004-km tunnel along the second railway line connecting Chongqing and Huaihua of central China's Hunan Province completed Monday after over three years of construction work. (Xinhua/Wang Quanchao)
![](http://www.ecns.cn/hd/2019/08/07/889c65c4204f42b69acfbb0cde03df0c.jpg)
Workers are seen inside the New Baishatuo Tunnel in Fuling District of southwest China's Chongqing, Aug. 6, 2019. The 10.004-km tunnel along the second railway line connecting Chongqing and Huaihua of central China's Hunan Province completed Monday after over three years of construction work. (Xinhua/Wang Quanchao)