Staff members welcome passengers during the test operation of Chizhou-Huangshan high-speed railway at Huangshan North Station in Huangshan City, east China's Anhui Province, March 26, 2024. Connecting Chizhou Station and Yixian County East Station in Huangshan City, the Chizhou-Huangshan high-speed railway started test operation on Tuesday. With a total length of about 125 kilometers, the railway has a designed speed of 350 kilometers per hour. [Photo/Xinhua]A staff member welcomes passengers during the test operation of Chizhou-Huangshan high-speed railway at Huangshan North Station in Huangshan City, east China's Anhui Province, March 26, 2024. [Photo/Xinhua]This photo taken on March 26, 2024 shows the scenery through a window of a bullet train running on the Chizhou-Huangshan high-speed railway during test operation in east China's Anhui Province. [Photo/Xinhua]An aerial drone photo taken on March 26, 2024 shows a bullet train running on the Chizhou-Huangshan high-speed railway during test operation in Jiaocun Township of Huangshan City, east China's Anhui Province. [Photo/Xinhua]A bullet train runs on the Taiping lake grand bridge during test operation of Chizhou-Huangshan high-speed railway in Huangshan City, east China's Anhui Province, March 26, 2024. [Photo/Xinhua]