[HIGHLIGHTS] "Post-90s" on-board mechanic and his youth guard the road

Zheng Zhong is an EMU mechanic in Fuzhou South EMU Station. He monitors the operation status of the EMU at all times.

"EMUs are like our human bodies, with control systems like brains, safety circuits like blood, and power units like hearts," he says. On the Wanli Railway Line, there is a group of railway people who silently guard the safety and smooth flow of railway transportation. The mechanics of the "post-1s" EMU are solemnly one of them.