机车车辆运行 meaning in Chinese

rolling stock running

So aluminum matrix composite is proper for brake rotors which can greatly reduce the weight of the brake system of train that improves dynamical properties of the train , and significantly lower the surface temperature of the brake rotor that increases safety coefficiency of service of vehicle
采用铝基复合材料制动盘可以大大减轻机车车辆的簧下重量,改善列车的动力学性能,并显著降低制动盘的表面温度,提高机车车辆运行的安全性。