mean speed

简明释义

平均速度

英英释义

例句

1.The car traveled a distance of 120 kilometers in 2 hours, so its mean speed 平均速度 was 60 kilometers per hour.

这辆车在2小时内行驶了120公里，因此它的mean speed 平均速度是每小时60公里。

2.The mean speed 平均速度 of the train was calculated to be 80 kilometers per hour over a journey of 400 kilometers.

火车的mean speed 平均速度在400公里的旅程中被计算为每小时80公里。

3.If you run 5 kilometers in 30 minutes, your mean speed 平均速度 is 10 kilometers per hour.

如果你在30分钟内跑了5公里，你的mean speed 平均速度是每小时10公里。

4.During the race, the cyclist maintained a mean speed 平均速度 of 35 kilometers per hour.

在比赛期间，骑自行车的人保持了每小时35公里的mean speed 平均速度。

5.To calculate the mean speed 平均速度, you need to divide the total distance by the total time taken.

要计算mean speed 平均速度，你需要将总距离除以总时间。

作文

When we talk about travel, one of the most important concepts to understand is the idea of mean speed. The term mean speed refers to the average speed at which an object moves over a specified distance during a certain period of time. It is calculated by dividing the total distance traveled by the total time taken to cover that distance. For example, if a car travels 100 kilometers in 2 hours, its mean speed would be 50 kilometers per hour. This concept is not only crucial for drivers but also for anyone who needs to plan their journeys effectively.Understanding mean speed is essential for various reasons. Firstly, it helps in estimating travel time. When you know the mean speed at which you can travel, you can easily calculate how long it will take to reach your destination. This is particularly useful when planning long trips or when you have a schedule to adhere to. For instance, if you are aware that your mean speed will be around 60 kilometers per hour, and you have to cover a distance of 180 kilometers, you can quickly deduce that it will take you approximately 3 hours to arrive.Moreover, mean speed is a vital factor in safety considerations. Understanding the mean speed can help drivers maintain safe driving practices. If a driver knows their mean speed exceeds the speed limit, they can adjust their driving behavior to avoid accidents or legal issues. Speed limits are set for a reason; they are designed to ensure the safety of all road users. Therefore, being conscious of one’s mean speed can significantly reduce the risk of accidents.In addition to personal travel, mean speed plays an important role in transportation logistics. Companies that rely on the timely delivery of goods must calculate the mean speed of their vehicles to optimize routes and schedules. By understanding the mean speed, logistics managers can make informed decisions about when to dispatch vehicles, how to allocate resources, and how to manage customer expectations regarding delivery times.Another interesting aspect of mean speed is its application in sports. Athletes often train to improve their mean speed in various competitions. For instance, runners aim to increase their mean speed to finish races faster. Coaches analyze their athletes' performance by monitoring their mean speed during training sessions and races, allowing them to tailor training programs effectively. This focus on mean speed not only enhances individual performance but also contributes to team success in competitive sports.In conclusion, the concept of mean speed is integral to various aspects of life, from personal travel to logistics and sports. By understanding and applying this concept, individuals can enhance their travel planning, ensure safety on the roads, optimize transportation processes, and improve athletic performance. Whether you are a casual traveler, a logistics manager, or an athlete, grasping the significance of mean speed can lead to better decision-making and overall efficiency in your endeavors.

当我们谈论旅行时，理解一个重要的概念就是“平均速度”这个词。平均速度是指一个物体在特定时间内移动一定距离的平均速度。它是通过将总距离除以覆盖该距离所用的总时间来计算的。例如，如果一辆车在2小时内行驶了100公里，那么它的平均速度就是每小时50公里。这个概念不仅对司机至关重要，对任何需要有效规划旅行的人来说也同样重要。理解平均速度有几个重要原因。首先，它有助于估算旅行时间。当你知道自己可以达到的平均速度时，就可以轻松计算到达目的地所需的时间。这在规划长途旅行或需要遵守时间表时尤其有用。例如，如果你知道自己的平均速度大约为每小时60公里，而你需要覆盖180公里的距离，你可以迅速推断出大约需要3小时才能到达。此外，平均速度在安全考虑中也起着至关重要的作用。了解平均速度可以帮助司机保持安全驾驶。如果司机知道他们的平均速度超过了限速，他们可以调整自己的驾驶行为，以避免事故或法律问题。限速是有原因的；它们旨在确保所有道路使用者的安全。因此，意识到自己的平均速度可以显著降低事故风险。除了个人旅行，平均速度在运输物流中也发挥着重要作用。依赖及时交付货物的公司必须计算其车辆的平均速度以优化路线和时间表。通过了解平均速度，物流经理可以就何时调度车辆、如何分配资源以及如何管理客户对交货时间的期望做出明智的决策。平均速度的另一个有趣方面是它在体育中的应用。运动员经常训练以提高他们在各种比赛中的平均速度。例如，跑步者旨在提高他们的平均速度以更快地完成比赛。教练通过监测运动员在训练和比赛中的平均速度来分析他们的表现，从而有效地调整训练计划。这种对平均速度的关注不仅提高了个人表现，还有助于团队在竞技体育中的成功。总之，平均速度这一概念与生活的各个方面密切相关，从个人旅行到物流和体育。通过理解和应用这一概念，个人可以增强旅行规划、确保道路安全、优化运输过程以及改善运动表现。无论你是休闲旅行者、物流经理还是运动员，掌握平均速度的重要性都能在你的工作中带来更好的决策和整体效率。