Aerial photo taken on Sept. 19, 2019 shows a new bridge over Dongting Lake on the Haoji Railway (originally named Menghua railway) line in central China's Hunan Province. With an annual delivery capacity of 200 million tonnes, the 1,837-km railway linking north China's Inner Mongolia Autonomous Region and east China's Jiangxi Province is soon to be the longest heavy-loaded railway in China when completed in October. (Xinhua/Chen Sihan)

　　Aerial photo taken on Sept. 19, 2019 shows a new bridge over Dongting Lake on the Haoji Railway (originally named Menghua railway) line in central China's Hunan Province. With an annual delivery capacity of 200 million tonnes, the 1,837-km railway linking north China's Inner Mongolia Autonomous Region and east China's Jiangxi Province is soon to be the longest heavy-loaded railway in China when completed in October. (Xinhua/Chen Sihan)

　　Aerial photo taken on Sept. 19, 2019 shows a new bridge over Dongting Lake on the Haoji Railway (originally named Menghua railway) line in central China's Hunan Province. With an annual delivery capacity of 200 million tonnes, the 1,837-km railway linking north China's Inner Mongolia Autonomous Region and east China's Jiangxi Province is soon to be the longest heavy-loaded railway in China when completed in October. (Xinhua/Chen Sihan)

　　Aerial photo taken on Sept. 19, 2019 shows a new bridge over Dongting Lake on the Haoji Railway (originally named Menghua railway) line in central China's Hunan Province. With an annual delivery capacity of 200 million tonnes, the 1,837-km railway linking north China's Inner Mongolia Autonomous Region and east China's Jiangxi Province is soon to be the longest heavy-loaded railway in China when completed in October. (Xinhua/Chen Sihan)

　　Aerial photo taken on Sept. 19, 2019 shows a new bridge over Dongting Lake on the Haoji Railway (originally named Menghua railway) line in central China's Hunan Province. With an annual delivery capacity of 200 million tonnes, the 1,837-km railway linking north China's Inner Mongolia Autonomous Region and east China's Jiangxi Province is soon to be the longest heavy-loaded railway in China when completed in October. (Xinhua/Chen Sihan)

　　Aerial photo taken on Sept. 19, 2019 shows a new bridge over Dongting Lake on the Haoji Railway (originally named Menghua railway) line in central China's Hunan Province. With an annual delivery capacity of 200 million tonnes, the 1,837-km railway linking north China's Inner Mongolia Autonomous Region and east China's Jiangxi Province is soon to be the longest heavy-loaded railway in China when completed in October. (Xinhua/Chen Sihan)