Photo taken on June 27, 2016 shows the entrance of the tunnel of Liupan Mountain, northwest China’s Ningxia Hui autonomous region. As the longest highway tunnel in China’s high altitude areas, the 9,485-meter tunnel is expected to be opened to traffic in July. [Photo/Xinhua]
Photo taken on June 27, 2016 shows the inside view of a tunnel in Liupan Mountain, northwest China’s Ningxia Hui autonomous region. As the longest highway tunnel in China’s high altitude areas, the 9,485-meter tunnel is expected to be opened to traffic in July. [Photo/Xinhua]
Vehicles conduct test drives inside the tunnel of Liupan Mountain, northwest China’s Ningxia Hui autonomous region, June 27, 2016. As the longest highway tunnel in China’s high altitude areas, the 9,485-meter tunnel is expected to be opened to traffic in July. [Photo/Xinhua]
Vehicles conduct test drives inside the tunnel of Liupan Mountain, northwest China’s Ningxia Hui autonomous region, June 27, 2016. As the longest highway tunnel in China’s high altitude areas, the 9,485-meter tunnel is expected to be opened to traffic in July. [Photo/Xinhua]
