自动变速箱（Automatic Transmission）是一种主要用于自动变速和换挡的汽车传动装置。

　　Automatic transmission is a type of automotive transmission device primarily used for automatic transmission and gear shifting.

　　它可以在驾驶过程中自动调整车辆的速度和挡位，使驾驶员能够更轻松、更舒适地驾驶车辆。自动变速箱通过液力耦合器和离合器来实现换挡过程，这些部件在车辆行驶过程中自动协调工作，确保发动机动力有效地传递到驱动轮上。

　　It can automatically adjust the speed and gear of the vehicle during driving, allowing the driver to drive the vehicle more easily and comfortably. The automatic transmission achieves the shifting process through hydraulic couplings and clutches, which work in automatic coordination during vehicle operation to ensure effective transmission of engine power to the driving wheels.

　　自动变速箱的主要优点是简化了驾驶过程，减轻了驾驶员的疲劳，提高了车辆的燃油效率。然而，它们通常比手动变速箱更昂贵，且维修成本可能更高。

　　The main advantages of automatic transmission are simplifying the driving process, reducing driver fatigue, and improving vehicle fuel efficiency. However, they are usually more expensive than manual transmissions and maintenance costs may be higher.

　　自动变速箱的工作原理是通过液力耦合器和离合器来实现换挡过程，这些部件在车辆行驶过程中自动协调工作，确保发动机动力有效地传递到驱动轮上。自动变速箱具有更高的传动效率，换挡平稳，驾驶更加舒适，因此受到越来越多的消费者欢迎。此外，自动变速箱可以适应不同驾驶环境和路况，提供了更好的驾驶体验。

　　The working principle of an automatic transmission is to achieve the shifting process through hydraulic couplings and clutches, which automatically coordinate their work during vehicle operation to ensure effective transmission of engine power to the driving wheels. Automatic transmissions have higher transmission efficiency, smoother shifting, and more comfortable driving, making them increasingly popular among consumers. In addition, automatic transmissions can adapt to different driving environments and road conditions, providing a better driving experience.

　　然而，与手动变速箱相比，自动变速箱的维修成本可能更高，且在某些情况下可能需要更多的维护。此外，由于自动变速箱的复杂性，其故障率可能会更高。因此，当选择车辆时，消费者需要权衡自动变速箱的优点和缺点，并根据自己的需求和驾驶习惯做出选择。

　　However, compared to manual transmissions, automatic transmissions may have higher maintenance costs and may require more maintenance in certain situations. In addition, due to the complexity of automatic transmissions, their failure rate may be higher. Therefore, when choosing a vehicle, consumers need to weigh the advantages and disadvantages of an automatic transmission and make a choice based on their own needs and driving habits.

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