frictional resistance

简明释义

摩擦阻力

英英释义

例句

1.In fluid dynamics, frictional resistance 摩擦阻力 plays a crucial role in determining flow rates.

在流体动力学中，摩擦阻力在确定流量方面起着至关重要的作用。

2.Reducing frictional resistance 摩擦阻力 can significantly improve the efficiency of the machine.

减少摩擦阻力可以显著提高机器的效率。

3.The engineer calculated the frictional resistance 摩擦阻力 in the system to optimize the design.

工程师计算了系统中的摩擦阻力以优化设计。

4.The frictional resistance 摩擦阻力 between the tires and the road affects vehicle performance.

轮胎与道路之间的摩擦阻力影响车辆性能。

5.To minimize frictional resistance 摩擦阻力, engineers often use lubricants.

为了最小化摩擦阻力，工程师通常使用润滑剂。

作文

Friction is a fundamental force that plays a crucial role in our daily lives, affecting everything from the way we walk to how vehicles move on roads. One important aspect of friction is the concept of frictional resistance, which refers to the opposing force that resists the motion of an object when it comes into contact with another surface. Understanding frictional resistance is essential in various fields, including engineering, physics, and even sports science.When we think about frictional resistance, it is helpful to consider its practical implications. For instance, when a car moves along a highway, its tires experience frictional resistance against the pavement. This resistance is necessary for the car to accelerate, decelerate, and navigate turns safely. Without sufficient frictional resistance, vehicles would slide uncontrollably, leading to dangerous situations on the road.In engineering, understanding frictional resistance is vital for designing efficient machines and structures. For example, in the construction of roller coasters, engineers must calculate the frictional resistance between the coaster cars and the tracks to ensure that riders experience an exhilarating yet safe ride. If the frictional resistance is too high, the coaster may not reach the desired speeds; if it is too low, the cars could derail.Moreover, frictional resistance is also a significant factor in sports. Athletes often strive to minimize frictional resistance to enhance their performance. Swimmers wear streamlined swimsuits to reduce water resistance, while cyclists use aerodynamic gear to cut through the air more efficiently. In both cases, understanding and managing frictional resistance can lead to improved results and records.On a more theoretical level, frictional resistance can be explained through the lens of physics. According to the laws of motion, the amount of frictional resistance depends on several factors, including the nature of the surfaces in contact, the normal force acting on the object, and the materials involved. For instance, rubber on concrete has a higher coefficient of friction compared to ice on metal, meaning that the frictional resistance will be greater in the former scenario.In conclusion, frictional resistance is a vital concept that influences many aspects of our world. From the mechanics of vehicles to the performance of athletes, understanding frictional resistance allows us to improve efficiency, safety, and effectiveness in numerous applications. As we continue to explore the principles of physics and engineering, the importance of frictional resistance will remain a key area of study, helping us to innovate and enhance our technological advancements.

摩擦是一个基本的力，在我们的日常生活中发挥着至关重要的作用，影响着我们行走的方式以及车辆在道路上的运动。摩擦的一个重要方面是摩擦阻力的概念，它指的是当物体与另一表面接触时，抵抗物体运动的相反力量。理解摩擦阻力在工程、物理甚至体育科学等多个领域都是至关重要的。当我们考虑摩擦阻力时，考虑其实际影响是很有帮助的。例如，当一辆汽车在高速公路上行驶时，其轮胎会感受到与路面之间的摩擦阻力。这种阻力对于汽车加速、减速和安全转弯是必要的。如果没有足够的摩擦阻力，车辆将无法控制地滑动，导致道路上的危险情况。在工程学中，理解摩擦阻力对于设计高效的机器和结构至关重要。例如，在过山车的建造中，工程师必须计算过山车车厢与轨道之间的摩擦阻力，以确保乘客体验到刺激而安全的乘坐。如果摩擦阻力过高，过山车可能无法达到所需的速度；如果过低，车厢可能会出轨。此外，摩擦阻力在体育中也是一个重要因素。运动员通常努力减少摩擦阻力以提高他们的表现。游泳运动员穿着流线型泳衣以减少水的阻力，而自行车手则使用空气动力学装备更有效地切入空气。在这两种情况下，理解和管理摩擦阻力可以带来更好的结果和纪录。从理论层面来看，摩擦阻力可以通过物理学的视角进行解释。根据运动定律，摩擦阻力的大小取决于几个因素，包括接触表面的性质、作用于物体的法向力和涉及的材料。例如，橡胶与混凝土之间的摩擦系数高于冰与金属之间的摩擦系数，这意味着在前一种情况下，摩擦阻力将更大。总之，摩擦阻力是一个重要的概念，影响着我们世界的许多方面。从车辆的机械原理到运动员的表现，理解摩擦阻力使我们能够在众多应用中提高效率、安全性和有效性。随着我们继续探索物理和工程的原理，摩擦阻力的重要性将始终是一个关键的研究领域，帮助我们创新并增强我们的技术进步。