A maintenance staff inspects a high-speed sleeper train remotely with an intelligent car bottom robot at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025. Intelligent car-bottom robots, self-service car washes, intelligent tool rooms, etc, are used for the maintenance of high-speed sleeper trains in Shenzhen high-speed train depot during the Spring Festival travel rush. [All Photos/Xinhua]
The maintenance personnel review the suspected fault location detected by the intelligent car-bottom robot during the maintenance of a high-speed sleeper train at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.
Maintenance staff inspects a high-speed sleeper train at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.
A high-speed sleeper train drives into a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.
A maintenance man selects tools at an intelligent tool room at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.
An intelligent car-bottom robot overhauls a high-speed sleeper train at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.
An automatic car washing system operates at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.
A maintenance staff inspects the cab of a high-speed sleeper train at a high-speed train depot in Shenzhen, South China's Guangdong province, Jan 17, 2025.