Driving it was very similar to any other automatic city car, except there was no exhaust system and no emissions.
2
排气系统可以降低从发动机气缸排出的已燃废弃的噪声,并且安全地将这些废气带走使其远离汽车内的人。
The exhaust system reduces the noise of the burned gases leaving the engine cylinders and carries these exhaust gases safely away from the people in the car.
3
催化转换器提供一种处理废气的方法。催化转换器位于排气系统中,在发动机和消声器之间。
Catalytic converters provide the method of treating exhaust gases. Catalytic converters are located in the exhaust system, between the engine and the muffler.