A train's propulsion drive system provides the vehicle's traction and dynamic braking performance. 列车的牵引驱动系统为车辆提供了牵引和动态制动性能。
Highway roads are not permitted to be used by motor vehicle manufacturers and other units as testing ground for tests of braking of motor vehicles. 第五十一条机动车制造厂和其他单位不得将公路作为检验机动车制动性能的试车场地。
