revolutions per unit time

简明释义

单位时间转数

英英释义

例句

1.The engine operates at 3000 revolutions per unit time.

发动机以每单位时间3000转数运转。

2.A bicycle wheel can make 10 revolutions per unit time when pedaled quickly.

当快速踩踏时，自行车轮子可以每单位时间转动10转数。

3.The motor's performance is measured in revolutions per unit time.

电机的性能是用每单位时间转数来衡量的。

4.For optimal performance, the drill should run at 1500 revolutions per unit time.

为了获得最佳性能，钻头应该以每单位时间1500转数运行。

5.To calculate the speed of the fan, you need to know its revolutions per unit time.

要计算风扇的速度，你需要知道它的每单位时间转数。

作文

Understanding the concept of revolutions per unit time is essential in various fields, particularly in physics and engineering. This term refers to the number of complete rotations an object makes around a central point or axis in a specified period. For instance, when discussing machinery, the efficiency and performance of engines are often measured in revolutions per unit time—a critical factor that engineers must consider when designing components. In practical applications, consider a car engine. The engine's performance can be evaluated by how many times the crankshaft rotates in one minute, commonly referred to as RPM (revolutions per minute). This measurement directly influences the power output and efficiency of the vehicle. Higher revolutions per unit time typically indicate more power, but they also bring challenges such as increased wear and tear on the engine components. Therefore, understanding this balance is crucial for automotive engineers.Another area where revolutions per unit time plays a significant role is in the design of turbines used in power generation. In wind turbines, for example, the rotation speed of the blades affects not only the amount of energy generated but also the structural integrity of the turbine itself. Engineers must calculate the optimal revolutions per unit time to maximize energy output while ensuring safety and durability against environmental factors.In the realm of physics, revolutions per unit time is instrumental in analyzing rotational motion. The study of angular velocity, which is defined as the rate of change of angular displacement, often utilizes this concept. When an object rotates, its angular velocity can be expressed in terms of revolutions per unit time, providing insights into the dynamics of rotating bodies. Understanding these principles helps physicists predict how objects will behave under various forces, which is vital in fields ranging from astrophysics to mechanical engineering.Moreover, the concept of revolutions per unit time extends beyond mechanical systems; it also applies to biological contexts. For instance, the heart rate can be described in terms of how many times the heart 'revolves' through its pumping cycle per minute. In this case, a healthy heart rate is crucial for maintaining overall health and well-being, emphasizing the importance of this measurement in medical science.In conclusion, mastering the concept of revolutions per unit time is not only important for students and professionals in technical fields but also beneficial for anyone seeking to understand the mechanics of the world around them. Whether it's evaluating the performance of machinery, understanding the principles of physics, or monitoring biological functions, this term encapsulates a fundamental aspect of movement and efficiency. By grasping the significance of revolutions per unit time, individuals can better appreciate the intricacies of both engineered systems and natural phenomena, leading to a deeper understanding of our universe.

理解“单位时间内的转数”这一概念在多个领域中至关重要，尤其是在物理学和工程学中。这个术语指的是一个物体围绕中心点或轴在特定时间内完成的完整旋转次数。例如，在讨论机械时，发动机的效率和性能通常以“单位时间内的转数”来衡量，这是工程师在设计组件时必须考虑的关键因素。在实际应用中，考虑一辆汽车发动机。发动机的性能可以通过曲轴在一分钟内旋转的次数来评估，通常称为RPM（每分钟转数）。这一测量直接影响车辆的功率输出和效率。较高的单位时间内的转数通常意味着更大的功率，但也带来了如发动机部件磨损加剧等挑战。因此，理解这种平衡对汽车工程师至关重要。单位时间内的转数在发电用涡轮机的设计中同样发挥着重要作用。例如，在风力涡轮机中，叶片的旋转速度不仅影响产生的能量数量，还影响涡轮机本身的结构完整性。工程师必须计算出最佳的单位时间内的转数，以最大化能量输出，同时确保安全和耐用性，以应对环境因素。在物理学领域，单位时间内的转数在分析旋转运动时至关重要。角速度的研究，即角位移变化的速率，通常利用这一概念。当一个物体旋转时，其角速度可以用单位时间内的转数来表示，这为旋转体的动力学提供了见解。理解这些原理有助于物理学家预测物体在各种力作用下的行为，这在从天体物理学到机械工程等领域都是至关重要的。此外，“单位时间内的转数”这一概念还扩展到生物学背景中。例如，心率可以用心脏每分钟“旋转”多少次来描述。在这种情况下，健康的心率对于维持整体健康和福祉至关重要，强调了这一测量在医学科学中的重要性。总之，掌握“单位时间内的转数”这一概念不仅对技术领域的学生和专业人士重要，也对任何希望理解周围世界机制的人有益。无论是评估机械性能、理解物理原理，还是监测生物功能，这个术语都概括了运动和效率的基本方面。通过掌握单位时间内的转数的意义，个人能够更好地欣赏工程系统和自然现象的复杂性，从而更深入地理解我们的宇宙。