This aerial photo taken on March 30, 2017 shows a newly-built bridge of the railway line for passenger transport over Jialing River in Southwest China’s Sichuan province. The 250-km-per-hour inter-city passenger line will link Xi’an, capital of Northwest China’s Shaanxi province, with Sichuan’s capital Chengdu. As the construction is nearly to be completed, it will become the country’s first high-speed railway passing through the Qinling Mountains.[Photo/Xinhua]

This aerial photo taken on March 30, 2017 shows a newly-built bridge of the railway line for passenger transport over Jialing River in Southwest China’s Sichuan province. The 250-km-per-hour inter-city passenger line will link Xi’an, capital of Northwest China’s Shaanxi province, with Sichuan’s capital Chengdu. As the construction is nearly to be completed, it will become the country’s first high-speed railway passing through the Qinling Mountains.[Photo/Xinhua]

This aerial photo taken on March 30, 2017 shows a newly-built bridge of the railway line for passenger transport over Jialing River in Southwest China’s Sichuan province. The 250-km-per-hour inter-city passenger line will link Xi’an, capital of Northwest China’s Shaanxi province, with Sichuan’s capital Chengdu. As the construction is nearly to be completed, it will become the country’s first high-speed railway passing through the Qinling Mountains.[Photo/Xinhua]

This aerial photo taken on March 30, 2017 shows a newly-built bridge of the railway line for passenger transport over Jialing River in Southwest China’s Sichuan province. The 250-km-per-hour inter-city passenger line will link Xi’an, capital of Northwest China’s Shaanxi province, with Sichuan’s capital Chengdu. As the construction is nearly to be completed, it will become the country’s first high-speed railway passing through the Qinling Mountains.[Photo/Xinhua]