A staff member works on a test train at Guiyang North Station in Guiyang, southwest China's Guizhou Province, June 26, 2023. With the departure of test train 55311 from Guiyang North Station, the Guiyang-Nanning high-speed railway officially started its operation tests on Monday. The railway, with a designed speed of 350 kilometers per hour, connects Guiyang of Guizhou Province and Nanning of Guangxi Zhuang Autonomous Region. [Photo/Xinhua]
A driver prepares for the departure of a test train at Guiyang North Station in Guiyang, southwest China's Guizhou Province, June 26, 2023. [Photo/Xinhua]
A test train passes a grand bridge in Guiding County, southwest China's Guizhou Province, June 26, 2023. [Photo/Xinhua]
Test train 55311 departs from Guiyang North Station in Guiyang, southwest China's Guizhou Province, June 26, 2023. [Photo/Xinhua]
Test train 55311 is seen before departure at Guiyang North Station in Guiyang, southwest China's Guizhou Province, June 26, 2023. [Photo/Xinhua]
Test train 55311 departs from Guiyang North Station in Guiyang, southwest China's Guizhou Province, June 26, 2023. [Photo/Xinhua]
Test train 55311 passes a grand bridge in Longli County, southwest China's Guizhou Province, June 26, 2023. [Photo/Xinhua]
