gearbox

gearbox的音标是[ˈɡearbɒks]，基本翻译是“变速器”。

速记技巧可以参考：在英文单词中，gear常用来指机械设备等的“部件”、“零件”，box指的是箱子，结合起来指装载、传输、转换设备的部件，变速器。在记忆时可以结合实物模型或图片进行记忆，加强记忆效果。

Gearbox这个词的词源可以追溯到古英语中的“geare”这个词，意为“齿轮”。它最初是指齿轮的组合，后来逐渐演变为指整个变速箱。

Gearbox的变化形式包括复数形式“gearsboxes”，过去式和过去分词形式“geared”和“geared-up”，现在分词形式“gearing”。

相关单词：

1. Gearshift - 换挡杆，是gearbox的一部分，用于改变齿轮的组合以适应不同的行驶条件。

2. Shift-up/down - 加速或减速时，驾驶员通常会通过改变gearshift的位置来移动到不同的齿轮。

3. Overdrive - 超速档，是gearbox中的一个特定齿轮组合，通常用于提高燃油效率。

4. Gear-grinding - 齿轮磨蚀，是一种常见的机械问题，由于齿轮的过度磨损而导致的。

5. Gear-slip - 换挡滑移，是指当驾驶员换挡时，齿轮之间的滑动导致的不流畅行驶。

6. Gear-clutch - 离合器齿轮，是一种特定的齿轮组合，用于在手动变速箱中控制动力传输。

7. Gear-change - 换挡，是驾驶员在gearbox中移动齿轮的过程。

8. Gear-box failure - 变速箱故障，是指gearbox中的某个部件失效导致的问题。

9. Automatic gearbox - 自动变速箱，是一种使用电子控制系统的gearbox，允许驾驶员选择不同的档位而无需手动换挡。

10. Gear-ratio - 齿轮比，是指gearbox中不同齿轮之间的比例关系，决定了车辆的行驶速度和扭矩输出。

常用短语：

1. gearbox replacement

2. gearbox maintenance

3. shift into gear

4. differential gear

5. main gear

6. pinion gear

7. planetary gear

例句：

1. We need to replace the damaged gearbox ASAP.

2. The mechanic is inspecting the gearbox for any signs of wear and tear.

3. When you shift into second gear, you need to accelerate smoothly.

4. The car"s differential gears are starting to make a lot of noise.

5. The main gear of the machine is very strong and reliable.

6. The pinion gear of the transmission is very small and delicate.

7. The planetary gears in this car are very efficient and smooth.

英文小作文：

Gearbox is an essential part of any vehicle, which transmits power from the engine to the wheels. It ensures smooth and efficient movement of the vehicle. However, like any other mechanical component, it requires regular maintenance and replacement when it is damaged beyond repair.

Gearbox replacement is a complex task and needs expertise and experience to carry out properly. It involves dismantling the vehicle, removing the damaged parts, and installing new ones. This process can be time-consuming and costly, but it is necessary to ensure safe and efficient operation of the vehicle.

On the other hand, regular maintenance of the gearbox can help detect any issues early and prevent them from getting worse. This includes inspecting the condition of the components, lubricating them regularly, and ensuring they are in good working condition. Regular maintenance also helps extend the life of the gearbox, reducing the need for replacement and saving money in the long run.