pivoted lever

简明释义

回转杆

英英释义

例句

1.The design of the door handle includes a pivoted lever mechanism for smooth operation.

门把手的设计包含一个支点杠杆机制，以实现顺畅的操作。

2.In the classroom, the teacher demonstrated how a pivoted lever can amplify force.

在课堂上，老师演示了如何使用支点杠杆来放大力量。

3.The mechanic used a pivoted lever to lift the heavy engine part with ease.

机械师使用一个支点杠杆轻松地抬起重型发动机部件。

4.A pivoted lever is essential in many types of machinery for efficient movement.

在许多类型的机械中，支点杠杆是实现高效运动的关键。

5.The engineer explained how the pivoted lever reduces the effort needed to lift objects.

工程师解释了支点杠杆如何减少抬起物体所需的力量。

作文

In the study of physics and engineering, the concept of a pivoted lever plays a crucial role in understanding how forces can be amplified or redirected. A pivoted lever is essentially a simple machine that consists of a rigid bar that rotates around a fixed point known as the fulcrum. The design of the lever allows for the application of a smaller force over a longer distance to lift a heavier load over a shorter distance. This principle is not only fundamental in mechanics but also has applications in various fields such as construction, machinery, and even in our daily lives.To fully grasp the significance of a pivoted lever, consider the classic example of a seesaw. When one person sits on one end of the seesaw and another person sits on the opposite end, the seesaw pivots around its center. If the two individuals have different weights, the lighter person can still balance the seesaw if they sit farther from the fulcrum, demonstrating how the distance from the pivot affects the leverage. This is a practical illustration of how a pivoted lever works, showcasing the relationship between force, distance, and balance.The mechanical advantage provided by a pivoted lever can be quantified using the formula: Mechanical Advantage (MA) = Distance from Fulcrum to Effort / Distance from Fulcrum to Load. This formula highlights that by increasing the distance from the fulcrum to the point where effort is applied, one can reduce the amount of force needed to lift the load. For instance, in construction, workers often use long levers to move heavy materials, making the task more manageable and efficient.Moreover, the principles behind a pivoted lever are not limited to physical objects; they can also be applied metaphorically in various aspects of life. For example, in decision-making, leveraging the right resources and support can create a significant impact with less effort, much like how a pivoted lever functions. By strategically positioning oneself or utilizing the right tools, one can achieve greater results with minimal exertion.In conclusion, the pivoted lever is a powerful tool that exemplifies the principles of leverage and mechanical advantage. Its applications extend beyond simple machines to encompass broader concepts in life and work. Understanding how to effectively use a pivoted lever can lead to more efficient problem-solving strategies and innovative approaches in various fields. By mastering this concept, individuals can learn to optimize their efforts, whether in physical tasks or in navigating complex challenges in everyday life.

在物理和工程学的研究中，支点杠杆的概念在理解如何放大或重新定向力量方面发挥着至关重要的作用。支点杠杆本质上是一个简单的机器，由一个围绕固定点（称为支点）旋转的刚性杆组成。杠杆的设计允许在较长距离上施加较小的力量，以便在较短距离上提升较重的负载。这一原理不仅在力学中是基础，同时在建筑、机械甚至我们日常生活中都有应用。为了全面理解支点杠杆的重要性，可以考虑经典的秋千例子。当一个人坐在秋千的一端，另一个人坐在对面时，秋千围绕其中心支点进行摆动。如果这两个人的体重不同，较轻的人仍然可以通过坐得离支点更远来平衡秋千，这展示了距离支点如何影响杠杆作用。这是支点杠杆工作的实际例证，展示了力量、距离和平衡之间的关系。支点杠杆提供的机械优势可以通过公式量化：机械优势（MA）= 从支点到施力点的距离 / 从支点到负载的距离。这个公式强调，通过增加从支点到施力点的距离，可以减少提升负载所需的力量。例如，在建筑行业，工人们常常使用长杠杆来移动重物，使任务变得更可管理和高效。此外，支点杠杆背后的原理不仅限于物理对象；它们也可以在生活的各个方面隐喻性地应用。例如，在决策过程中，利用正确的资源和支持可以以较少的努力产生重大影响，就像支点杠杆的功能一样。通过战略性地定位自己或利用合适的工具，人们可以在最小的付出下获得更大的成果。总之，支点杠杆是一个强大的工具，体现了杠杆和机械优势的原理。它的应用超越了简单的机器，涵盖了生活和工作中的更广泛概念。理解如何有效地使用支点杠杆可以导致更高效的问题解决策略和在各个领域的创新方法。通过掌握这一概念，个人可以学习优化他们的努力，无论是在物理任务中还是在应对日常生活中的复杂挑战中。