A train driver conducts simulation driving exercises at the simulation training base in Beijing, capital of China, Jan. 20, 2026. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)

A staff member conducts maintenance work at a high-speed train base in Beijing, capital of China, Jan. 20, 2026. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)

Staff members conduct maintenance work at a high-speed train base in Beijing, capital of China, Jan. 20, 2026. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)

Train drivers conduct simulation driving exercises at the simulation training base in Beijing, capital of China, Jan. 20, 2026. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)

This photo taken on Jan. 20, 2026 shows a smart maintenance robot at a high-speed train base in Beijing, capital of China. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)

A staff member conducts maintenance work at a high-speed train base in Beijing, capital of China, Jan. 20, 2026. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)

Staff members conduct maintenance work at a high-speed train base in Beijing, capital of China, Jan. 20, 2026. With the approach of the Spring Festival, high-speed train staff members in Beijing are engaging in busy preparations to better serve the Spring Festival travel rush. (Xinhua/Li An)