revolutions per minute

简明释义

转／分

英英释义

例句

1.The engine runs at a speed of 3000 revolutions per minute.

这台发动机的转速为3000每分钟转数。

2.A typical washing machine spins at about 1200 revolutions per minute.

一台普通洗衣机的脱水速度大约为1200每分钟转数。

3.The fan operates efficiently at 1500 revolutions per minute.

这台风扇在1500每分钟转数的转速下运行效率最高。

4.In racing, the car's engine often exceeds 8000 revolutions per minute.

在赛车中，汽车的发动机转速常常超过8000每分钟转数。

5.The drill can operate at up to 2500 revolutions per minute for faster drilling.

这台钻头的最高转速可达到2500每分钟转数，以便更快地钻孔。

作文

Understanding the concept of revolutions per minute is crucial in various fields, especially in engineering and mechanics. This term refers to the number of complete rotations a mechanical component makes around a fixed axis in one minute. For instance, in the context of an engine, the revolutions per minute indicates how many times the crankshaft completes a full rotation within sixty seconds. This measurement is significant as it directly correlates with the power output and efficiency of the engine. Higher revolutions per minute values typically suggest that the engine operates at a higher capacity, which can be advantageous in performance vehicles. In practical applications, understanding revolutions per minute helps engineers design machines that operate optimally. For example, when designing a fan, engineers must calculate the ideal revolutions per minute to ensure sufficient airflow while minimizing noise levels. If the fan operates at too high a revolutions per minute, it may produce excessive noise and wear out more quickly. Conversely, if it runs at too low a speed, it may not provide adequate ventilation. Thus, finding the right balance is essential for performance and longevity.Moreover, the revolutions per minute measurement is also applicable in the realm of fitness. Many exercise machines, such as stationary bikes or rowing machines, display the user's cadence in revolutions per minute. This information allows individuals to monitor their workout intensity and adjust their efforts accordingly. For instance, a cyclist aiming for a high-intensity workout may strive to maintain a higher revolutions per minute, while a beginner might focus on building endurance at a lower rate.In the automotive industry, revolutions per minute is a critical factor when discussing gear ratios and acceleration. Drivers often need to shift gears based on the engine's revolutions per minute to optimize fuel efficiency and performance. Understanding this relationship can significantly enhance driving skills, making it easier to navigate different terrains and conditions.Furthermore, in the context of music, revolutions per minute is used to describe the speed at which vinyl records rotate. Standard records typically spin at either 33 1/3 or 45 revolutions per minute. The speed affects the playback quality and pitch of the music. Collectors and audiophiles often pay close attention to this detail, as it can influence their listening experience.In conclusion, the term revolutions per minute encompasses a wide range of applications across various fields. From engineering and automotive design to fitness and music, understanding this concept is essential for optimizing performance and achieving desired outcomes. Mastering the implications of revolutions per minute can lead to better decision-making and enhanced results in both professional and personal endeavors. As technology continues to evolve, the importance of accurately measuring and interpreting revolutions per minute will undoubtedly remain significant in our increasingly mechanized world.

理解“每分钟转数”（revolutions per minute）的概念在各个领域都至关重要，特别是在工程和机械学中。这个术语指的是一个机械部件在一分钟内围绕固定轴旋转的完整圈数。例如，在发动机的背景下，revolutions per minute 表示曲轴在六十秒内完成的完整旋转次数。这个测量非常重要，因为它直接与发动机的功率输出和效率相关。较高的revolutions per minute 值通常表明发动机以更高的能力运行，这在性能车辆中是有利的。在实际应用中，理解revolutions per minute 有助于工程师设计最佳运行的机器。例如，在设计风扇时，工程师必须计算理想的revolutions per minute 以确保足够的气流，同时最小化噪音水平。如果风扇以过高的revolutions per minute 运行，可能会产生过多的噪音并加速磨损。相反，如果它以过低的速度运行，则可能无法提供足够的通风。因此，找到合适的平衡对性能和耐用性至关重要。此外，revolutions per minute 的测量在健身领域也适用。许多健身器械，例如静态自行车或划船机，都会显示用户的踏频（cadence），单位是revolutions per minute。这些信息使个人能够监控他们的锻炼强度，并相应地调整努力。例如，旨在进行高强度锻炼的骑自行车者可能会努力保持较高的revolutions per minute，而初学者则可能专注于以较低的速度建立耐力。在汽车工业中，revolutions per minute 是讨论齿轮比和加速时的关键因素。驾驶员通常需要根据发动机的revolutions per minute 来换挡，以优化燃油效率和性能。理解这一关系可以显著提高驾驶技巧，使其更容易在不同的地形和条件下导航。此外，在音乐的背景下，revolutions per minute 用于描述黑胶唱片的旋转速度。标准唱片通常以每分钟33 1/3或45转的速度旋转。速度影响音乐的播放质量和音调。收藏家和音响爱好者通常会密切关注这一细节，因为它会影响他们的听觉体验。总之，术语revolutions per minute 涉及多个领域的广泛应用。从工程和汽车设计到健身和音乐，理解这一概念对于优化性能和实现预期结果至关重要。掌握revolutions per minute 的含义可以带来更好的决策和在专业和个人追求中的更佳成果。随着技术的不断发展，准确测量和解释revolutions per minute 的重要性无疑将在我们日益机械化的世界中保持重要。