车务段长

例句：

1. 1. He is the chief engineer of the railway car maintenance department.
   他是铁路客车维修部门的总工程师。
2. 2. The train driver is in charge of the safety inspections on board.
   火车司机负责检查车上的安全状况。
3. 3. The conductor is responsible for ensuring the smooth operation of the train.
   列车长负责确保列车顺畅运行。