speedometer

简明释义

英[spiːˈdɒmɪtə(r)]美[spiːˈdɑːmɪtər]

n. 速度计；里程计

复 数 s p e e d o m e t e r s

英英释义

单词用法

同义词

反义词

例句

1.He adjusted the speedometer after replacing the car's dashboard.

他在更换汽车仪表盘后调整了速度计。

2.I glanced at the speedometer to check how fast I was going.

我瞥了一眼速度计，查看我开得有多快。

3.The speedometer is malfunctioning; it shows a constant speed of 60 mph.

这个速度计出现故障，始终显示60英里每小时的速度。

4.Make sure to keep an eye on the speedometer while driving in the rain.

在雨天开车时，一定要注意速度计。

5.The speedometer showed that I was exceeding the speed limit.

速度计显示我超速了。

作文

The invention of the automobile revolutionized transportation, making it faster and more efficient than ever before. One of the key components that contribute to the functionality of a vehicle is the speedometer, a device that measures and displays the speed of the vehicle. Understanding how a speedometer works can enhance our appreciation for modern engineering and the importance of safety on the road.A speedometer is typically found on the dashboard of a car, motorcycle, or any other vehicle. It serves a crucial role by providing the driver with real-time information about how fast they are traveling. This is important not only for adherence to traffic laws but also for ensuring the safety of everyone on the road. Driving at excessive speeds can lead to accidents, and a functioning speedometer helps prevent such dangerous situations by allowing drivers to monitor their speed.There are two main types of speedometers: mechanical and electronic. Mechanical speedometers use a flexible, spinning cable connected to the vehicle's transmission. As the vehicle moves, the cable spins and drives a magnet that turns a dial, indicating the speed. On the other hand, electronic speedometers use sensors to measure the rotation of the wheels and send this information to a computer, which then calculates and displays the speed. Both types serve the same fundamental purpose, but electronic speedometers are generally more accurate and easier to read.In addition to displaying speed, many modern vehicles come equipped with advanced speedometers that offer additional features. For instance, some speedometers include a trip meter, which allows drivers to track the distance traveled during a specific journey. Others may provide average speed calculations or even GPS-based speed readings. These features can be incredibly useful for long-distance travel, helping drivers manage their time and fuel consumption more effectively.Moreover, the importance of a well-functioning speedometer extends beyond individual drivers. Traffic authorities rely on accurate speed measurements to enforce speed limits and promote road safety. By ensuring that vehicles are equipped with properly calibrated speedometers, we can help reduce the number of speed-related accidents and encourage responsible driving behavior.However, it is essential to remember that a speedometer is just one tool in a driver's arsenal. While it provides valuable information, drivers must also be aware of road conditions, weather, and other factors that can affect their ability to drive safely. Relying solely on a speedometer without considering these elements can lead to dangerous situations.In conclusion, the speedometer is a vital instrument in modern vehicles that enhances safety and efficiency. By understanding its function and importance, we can appreciate the advancements in automotive technology that have made driving safer and more enjoyable. Whether you are a seasoned driver or just starting your journey on the road, paying attention to your speedometer can make all the difference in ensuring a safe and pleasant driving experience.

汽车的发明彻底改变了交通运输，使其比以往任何时候都更快、更高效。车辆功能的关键组成部分之一是速度计，一种测量和显示车辆速度的设备。了解速度计的工作原理可以增强我们对现代工程的欣赏以及道路安全的重要性。速度计通常位于汽车、摩托车或其他任何车辆的仪表盘上。它通过向驾驶员提供实时信息，告知他们行驶速度，从而发挥着至关重要的作用。这不仅对遵守交通法规至关重要，而且对确保道路上每个人的安全也至关重要。超速行驶可能导致事故，而一个正常工作的速度计可以通过让驾驶员监控自己的速度来帮助防止这种危险情况。速度计主要有两种类型：机械式和电子式。机械式速度计使用连接到车辆变速器的柔性旋转电缆。当车辆移动时，电缆旋转并驱动一个磁铁，指示速度的刻度盘转动。另一方面，电子式速度计使用传感器来测量车轮的旋转，并将这些信息发送到计算机，计算并显示速度。这两种类型的速度计都具有相同的基本功能，但电子式速度计通常更准确，更易于读取。除了显示速度，许多现代车辆配备了先进的速度计，提供额外的功能。例如，一些速度计包括行程计，允许驾驶员跟踪特定旅程中行驶的距离。还有一些可能提供平均速度计算，甚至基于GPS的速度读数。这些功能对于长途旅行非常有用，帮助驾驶员更有效地管理时间和燃料消耗。此外，正常工作的速度计的重要性超出了个别驾驶员的范围。交通当局依赖于准确的速度测量来执行限速规定和促进道路安全。通过确保车辆配备经过正确校准的速度计，我们可以帮助减少与超速相关的事故数量，并鼓励负责任的驾驶行为。然而，必须记住，速度计只是驾驶员工具箱中的一个工具。虽然它提供了有价值的信息，但驾驶员还必须注意道路状况、天气和其他可能影响安全驾驶能力的因素。仅依赖于速度计而不考虑这些因素可能会导致危险情况。总之，速度计是现代车辆中的一个重要仪器，可以提高安全性和效率。通过理解其功能和重要性，我们可以欣赏汽车技术的进步，使驾驶更安全、更愉快。无论你是经验丰富的驾驶员还是刚开始上路的新手，关注你的速度计都可以在确保安全和愉快的驾驶体验中发挥重要作用。