mean speed

简明释义

均速

英英释义

例句

1.The car traveled 150 kilometers in 2 hours, so its mean speed 平均速度 was 75 kilometers per hour.

这辆车在2小时内行驶了150公里，因此它的mean speed 平均速度为每小时75公里。

2.During the race, the cyclist maintained a mean speed 平均速度 of 30 km/h.

在比赛期间，这名自行车手保持了30公里/小时的mean speed 平均速度。

3.If you want to improve your mean speed 平均速度, consider training regularly.

如果你想提高你的mean speed 平均速度，考虑定期训练。

4.The mean speed 平均速度 of the train was significantly higher than that of cars on the same route.

火车的mean speed 平均速度明显高于同一路线上的汽车。

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

要计算mean speed 平均速度，将总距离除以总时间。

作文

When discussing motion and travel, one term that frequently arises is mean speed. The concept of mean speed refers to the average speed at which an object travels over a certain distance during a specific time interval. It is calculated by taking the total distance traveled and dividing it by the total time taken to cover that distance. This simple yet powerful formula allows us to understand how quickly or slowly an object moves, providing valuable insights into various scenarios ranging from everyday commutes to complex scientific studies.To illustrate the importance of mean speed, consider a scenario where a person drives from one city to another. Suppose the distance between the two cities is 240 kilometers, and the person takes 3 hours to complete the journey. To find the mean speed, we would use the formula: Mean Speed = Total Distance / Total Time In this case, the calculation would be: Mean Speed = 240 km / 3 hours = 80 km/h This means that the driver maintained an average speed of 80 kilometers per hour throughout the trip. Understanding the mean speed in this context helps the driver plan future trips more effectively, as they can estimate how long it will take to reach their destination based on different distances and speeds.In addition to practical applications, the concept of mean speed also plays a crucial role in physics and engineering. For instance, engineers often need to calculate the mean speed of vehicles to design safer roads and traffic systems. By analyzing the mean speed of cars during peak hours, they can identify congestion points and implement measures to alleviate traffic jams. Similarly, scientists studying animal migration patterns may calculate the mean speed of different species to understand their behaviors and adapt conservation strategies accordingly.Moreover, the mean speed can vary significantly depending on numerous factors such as terrain, weather conditions, and the mode of transportation. For example, the mean speed of a bicycle might be much lower than that of a car, and both can be affected by hills or strong winds. Therefore, it is essential to consider these variables when calculating or interpreting mean speed. This variability highlights the importance of context when discussing speed, as it can lead to different conclusions based on the circumstances.In conclusion, the term mean speed is fundamental in understanding motion across various fields. Whether it’s for planning a road trip, designing infrastructure, or conducting scientific research, grasping the concept of mean speed enables individuals and professionals alike to make informed decisions. By mastering this term and its applications, we can enhance our comprehension of movement and improve our navigation through both daily life and specialized disciplines.

当讨论运动和旅行时，一个经常出现的术语是平均速度。平均速度的概念指的是一个物体在特定时间间隔内行驶一定距离的平均速度。它通过将总行驶距离除以覆盖该距离所需的总时间来计算。这一简单而强大的公式使我们能够理解一个物体移动的快慢，为各种场景提供了有价值的见解，从日常通勤到复杂的科学研究。为了说明平均速度的重要性，考虑一个人从一个城市开车到另一个城市的场景。假设两个城市之间的距离是240公里，而这个人花了3小时完成这段旅程。要找到平均速度，我们可以使用以下公式：平均速度 = 总距离 / 总时间在这种情况下，计算为：平均速度 = 240公里 / 3小时 = 80公里/小时这意味着司机在整个旅程中保持了每小时80公里的平均速度。在这种情况下，理解平均速度帮助司机更有效地规划未来的旅行，因为他们可以根据不同的距离和速度估算到达目的地所需的时间。除了实际应用外，平均速度的概念在物理学和工程学中也发挥着至关重要的作用。例如，工程师需要计算车辆的平均速度以设计更安全的道路和交通系统。通过分析高峰时段汽车的平均速度，他们可以识别拥堵点并实施缓解交通堵塞的措施。同样，研究动物迁徙模式的科学家可能会计算不同物种的平均速度以了解它们的行为并调整保护策略。此外，平均速度可能会因为多种因素而显著变化，例如地形、天气条件和交通工具的类型。例如，自行车的平均速度可能远低于汽车的，而两者都可能受到丘陵或强风的影响。因此，在计算或解释平均速度时，考虑这些变量是至关重要的。这种可变性突显了在讨论速度时考虑上下文的重要性，因为它可能基于情况得出不同的结论。总之，术语平均速度在理解各个领域的运动中是基本的。无论是为了规划公路旅行、设计基础设施还是进行科学研究，掌握平均速度的概念使个人和专业人士能够做出明智的决策。通过掌握这个术语及其应用，我们可以增强对运动的理解，并改善我们在日常生活和专业学科中的导航能力。