感觉和其他自动挡轿车一样，只不过它没有排气系统以及任何废气排放。
Driving it was very similar to any other automatic city car, except there was no exhaust system and no emissions.
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.
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.
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