dry friction

简明释义

干摩擦

英英释义

例句

1.The engineer explained that the design needed to minimize dry friction to improve efficiency.

工程师解释说，设计需要尽量减少干摩擦以提高效率。

2.When two surfaces rub against each other without lubrication, they experience dry friction.

当两个表面在没有润滑的情况下相互摩擦时，它们会经历干摩擦。

3.To reduce dry friction, we can apply a lubricant to the surfaces.

为了减少干摩擦，我们可以在表面上涂抹润滑剂。

4.In a car's braking system, dry friction is crucial for stopping power.

在汽车的制动系统中，干摩擦对制动能力至关重要。

5.The coefficient of dry friction varies depending on the materials in contact.

不同材料接触时，干摩擦的系数会有所不同。

作文

Friction is a fundamental force that plays a crucial role in our everyday lives. It is the resistance encountered when one surface slides over another. Among the various types of friction, dry friction (干摩擦) is particularly significant because it occurs between solid surfaces without any lubrication. Understanding dry friction is essential for various applications, from engineering to sports, as it affects how objects move and interact with each other.In engineering, dry friction is a critical factor in the design of machines and mechanical systems. When two parts of a machine come into contact, the dry friction between them can influence their performance and efficiency. For example, in a car engine, the moving parts experience dry friction, which can lead to wear and tear over time. Engineers must consider this friction to ensure that the materials used can withstand the forces involved and minimize energy loss due to heat generated by dry friction.In the realm of sports, dry friction has a profound impact on athletic performance. Take, for instance, the sport of basketball. The grip of the shoes on the court floor is primarily due to dry friction. Players rely on this friction to make quick movements, stop suddenly, and change direction. If the dry friction between the shoe and the floor is too low, players may slip, leading to injuries or poor performance. Coaches and athletes often experiment with different shoe designs and materials to find the optimal balance of dry friction that enhances performance while ensuring safety.Moreover, dry friction is also an important consideration in everyday activities such as walking. When we walk, the soles of our shoes create dry friction with the ground, allowing us to push off and propel ourselves forward. If the surface is too slippery, like ice, the dry friction decreases, making it difficult to maintain balance and movement. This illustrates how crucial dry friction is for our mobility and safety.In conclusion, dry friction (干摩擦) is an essential force that influences various aspects of our lives, from the design of machines to athletic performance and daily activities. Understanding its principles can help us improve technology, enhance sports performance, and ensure safety in our movements. As we continue to explore the complexities of friction, we can develop better materials and designs that optimize dry friction for various applications, ultimately leading to advancements in multiple fields.

摩擦力是一个基本的力，在我们的日常生活中起着至关重要的作用。它是当一个表面滑过另一个表面时遇到的阻力。在各种摩擦类型中，干摩擦（dry friction）尤其重要，因为它发生在没有润滑的固体表面之间。理解干摩擦对于从工程到运动的各种应用至关重要，因为它影响物体如何移动和相互作用。在工程学中，干摩擦是机器和机械系统设计中的一个关键因素。当机器的两个部分接触时，它们之间的干摩擦会影响它们的性能和效率。例如，在汽车发动机中，运动部件会经历干摩擦，这可能导致随时间的磨损。工程师必须考虑这种摩擦，以确保所使用的材料能够承受所涉及的力量，并尽量减少由于干摩擦产生的热量造成的能量损失。在体育领域，干摩擦对运动表现有深远的影响。以篮球为例。鞋子与球场地板之间的抓地力主要来自于干摩擦。球员依赖这种摩擦来快速移动、突然停止和改变方向。如果鞋子与地板之间的干摩擦过低，球员可能会滑倒，导致受伤或表现不佳。教练和运动员经常尝试不同的鞋子设计和材料，以找到增强表现同时确保安全的最佳干摩擦平衡。此外，干摩擦在我们日常活动中也很重要，比如走路。当我们走路时，鞋底与地面的接触产生了干摩擦，使我们能够向前推动自己。如果表面太滑，比如冰面，干摩擦就会降低，使保持平衡和移动变得困难。这说明了干摩擦对我们的移动和安全是多么重要。总之，干摩擦（dry friction）是一种影响我们生活各个方面的重要力量，从机器设计到运动表现，再到日常活动。理解其原理可以帮助我们改善技术、增强运动表现，并确保我们运动的安全。随着我们继续探索摩擦的复杂性，我们可以开发出更好的材料和设计，以优化各种应用中的干摩擦，最终推动多个领域的进步。