图为考察团参观轮对轴承轴箱拆装机作业流程。 Photo by China News Service reporter Ma Mingyan The picture shows the delegation visiting the operation process of the automatic measuring machine for wheel set outer dimensions. Photo by China News Service reporter Ma Mingyan The picture shows the delegation visiting the operation process of the wheel set running-in testing machine. Photo by China News Service reporter Ma Mingyan The picture shows the delegation visiting the wheel and axle multi-channel ultrasonic flaw detection operation. Photo by China News Service reporter Ma Mingyan The picture shows the delegation visiting the axle box front cover and the tightening of the axle end bolts. 中新网记者 马明艳 摄 图为考察团参观动车组模拟驾驶系统。 Photo by China News Service reporter Ma Mingyan The picture shows the delegation visiting the operation of the intelligent maintenance robot of the EMU. 中新社记者 马明艳 摄