power steering
noun [ U ] uk/ˌpaʊə ˈstɪə.rɪŋ/ us/ˌpaʊ.ɚ ˈstɪr.ɪŋ/ (also power-assisted steering)
（车辆上的）转向助力装置，动力转向系统
a system for changing the direction in which a road vehicle is moving by using power from the engine to help the driver turn the vehicle
Power steering, electric windows and central locking are standard features on all models. 转向助力装置、电动窗户和中央闭锁装置是所有型号的标准配置。