城市轨道交通车辆专业英语COMPONENTS组成：1.Car body车身It is to accommodate passengers and the driver.这是为了容纳乘客和司机。
Meanwhile, it is the basic component to connect to other devices or car bodies.同时，它是连接到其他设备或车身的基本部件。
For the purpose of meeting the strength requirement while keeping the self-weight at its lowest. 为了满足强度要求，同时保持自重最低。
Integrated steel structure or light metal structure is adopted.采用整体式钢结构或轻型金属结构。
It usually comprises of the floor, the roof, sides and end walls.它通常包括地板、屋顶、侧壁和端壁。
2. Bogies转向架Motor and trailer bogies are located between the car body and the track, to drag and guide the vehicles moving along the track.汽车和拖车转向架位于车体与轨道之间，拖曳和引导车辆沿轨道运动。
They cab bear and transfer a variety of load from lines and the car body, easing its dynamic action.他们从线路和车体上承担和传递各种载荷，减轻其动力作用。
It usually comprises of frame, spring suspension, wheel axle box and brake devices, etc.它通常包括车架、弹簧悬架、车轮轴箱和制动装置等。
3. Traction and Buffer devices牵引缓冲装置The devices function together as the coupler which helps toimprove the vertical stability.这些器件作为耦合器一起起作用，有助于提高垂直稳定性。
Buffer devices are included in couplers to mitigate the train jerk.缓冲装置包括在耦合器中以减轻火车颠簸。
They are also used to connect the electrical lines and air lines between vehicles.它们也用于连接车辆之间的电线和空气线。
4. Braking devices制动装置They are crucial to the operation safety of the train.它们对列车的运行安全至关重要。
They are installed in motor cars and trailer cars to ensure that the operation vehicles can be slow down as commanded and that the brake stopping distance is within required limit.它们安装在机动车辆和拖车中，以确保操作车辆可以按命令减速，制动停止距离在规定的限度内。
In addition to conventional pneumatic braking, electro-dynamic braking is introduced.除了传统的气动制动之外，还引入了电动制动。
5.collection set受电弓The collectors are used to lead current to motor cars.收集器是用来引导汽车电流的。
Methods: trolley, bow, side, third rail, pantograph collectors.方法：台车、弓、边、第三轨、受电弓收集器。
As to the power supply, DC 750 V is widely used in many cities with metros, Beijing Metro. Shanghai Metro used DC 1500 V. DC 600V is rarely used.至于电源，直流750 V广泛使用在许多城市与地铁，北京地铁。
上海地铁采用直流1500 V 直流600伏很少使用。
6. Inner equipment内部设备The equipment refers to the fixed facilities accommodating passengers in the car body,including such equipment as ventilation, heating , air conditions, seats, hand rails, etc.该设备是指在车厢内容纳乘客的固定设施，包括通风、供暖、空调、座椅、扶手等设备。
The equipment also refers to accessories supporting the operation of the vehicle, which are mostly those suspending in the car chassis, such as bogies, battery box, the traction braking box. 该设备还涉及支持车辆运行的附件，主要是悬挂在汽车底盘上的车辆，如转向架、蓄电池箱、牵引制动箱。
7. Electrical system电气系统Electrical systems include a variety of electrical facilities in vehicles and the corresponding control circuits.电气系统包括车辆中的各种电气设备和相应的控制电路。
They can be generally divided into 3 sections: the main electrical system, the auxiliary circuit system, and the electronic control system.它们一般可分为3个部分：主电气系统、辅助电路系统和电子控制系统。
TECHNICAL PARAMETERS技术参数Performance parameters性能参数：Selfweight,Load,Volume,Designing velocity,Axle weight,Track load of every lengthening meter,The negotiating minimum curve radius,Axis columns numbers,The maximum start acceleration,Power indicator of every ton,Supply voltage,Braking type,The number of seats and the number of standing passengers per square meter每个加长计的自重、载荷、体积、设计速度、轴重、轨道载荷、最小曲线半径、轴列数、最大起动加速度、每吨功率指示器、供电电压、制动类型、座位数和站立乘客数。
平方米Dimension parameters尺寸参数：The whole length,Maximum width,Maximum height of vehicle,The car body length ,Width ,Height ,Vehicle interval ,Fixed bogie wheelbase ,The whole wheelbase ,The height from coupler ,center line to the track surface ,The floor height 车辆的全长、最大宽度、最大高度、车体长度、宽度、高度、车辆间隔、固定转向架轴距、整个轴距、车钩高度、轨道表面中心线、地面高度FUTHER READING进一步阅读Public transport is a shared passenger service which is available for use by the general public.公共交通是一种共享的客运服务，可供广大市民使用。
Public transport modes include buses, trolleybuses, trams and trains, rapid transit and ferries.公共交通方式包括公共汽车、无轨电车、电车和火车、快速交通工具和渡轮。
Intercity public transport is dominated by airlines, coaches and intercity rail.城际公共交通由航空公司、长途汽车和城际铁路所主导。
High-speed rail networks are being developed in many parts of the world.世界许多地区正在开发高速铁路网。
Most public transport runs a scheduled timetable with most frequent services running to a headway.大多数公共交通运行着一个预定的时间表，最频繁的服务正朝着一个方向发展。
Car Body Structure车身结构The car body frame is of flat profile types, permits to use cold cast covering.车体框架为平面型，允许使用冷铸造覆盖物。
The material is polyurethane resin base with elastomergranulates, which can form continuous, smooth surface over the full length of the saloon.该材料是聚氨酯树脂基弹性体颗粒，可以形成连续，光滑的表面在The Saloon夜店全长。