nominal horse-power

简明释义

标称马力

英英释义

例句

1.The tractor's nominal horse-power allows it to handle heavy loads efficiently.

这台拖拉机的额定马力使其能够高效地处理重载。

2.The engine has a rated output of 150 nominal horse-power, which is sufficient for most applications.

这台发动机的额定输出为150额定马力，足以满足大多数应用。

3.A higher nominal horse-power rating usually indicates better acceleration capabilities.

更高的额定马力通常表示更好的加速能力。

4.When comparing vehicles, it's important to consider the nominal horse-power to assess their performance.

在比较车辆时，考虑额定马力对于评估其性能很重要。

5.Manufacturers often list the nominal horse-power of their engines in specifications.

制造商通常在规格中列出其发动机的额定马力。

作文

The concept of nominal horse-power is an essential term in the field of engineering, particularly when discussing engines and machinery. It refers to a standardized measure of power output that is used as a reference point for comparing various engines or machines. This measurement is crucial because it helps engineers and consumers understand the capabilities of different equipment, enabling them to make informed decisions based on their needs.Historically, the term 'horsepower' dates back to the late 18th century when James Watt sought to market his steam engines. He needed a way to demonstrate the power of his engines compared to horses, which were commonly used for labor at the time. Thus, he calculated that a horse could turn a mill wheel of a specific size at a certain speed, and from this, he derived the concept of horsepower. However, as technology advanced, it became clear that not all engines performed equally under different conditions. This led to the introduction of nominal horse-power as a more uniform standard.The nominal horse-power is often defined under specific conditions, such as temperature and pressure, ensuring that the measurements are consistent across different types of engines. For example, an engine rated at 100 nominal horse-power will produce that amount of power under ideal conditions. However, in real-world applications, factors like altitude, humidity, and load can affect actual performance, which is why understanding the difference between nominal and actual horsepower is vital.In practice, nominal horse-power serves multiple purposes. First, it provides a means for manufacturers to advertise their products accurately. When a car manufacturer states that a vehicle has a certain amount of nominal horse-power, potential buyers can gauge its performance relative to other vehicles in the same class. Second, it assists engineers in designing systems and selecting appropriate components. Knowing the nominal horse-power helps in determining the right size for gears, belts, and other mechanical parts that will work efficiently together.Moreover, the concept of nominal horse-power extends beyond just automobiles and engines. It is also applicable in fields like marine and aviation engineering. For instance, ships are often rated by their engine's nominal horse-power, which helps in assessing their speed and cargo capacity. Similarly, aircraft engines are evaluated based on their nominal horse-power, influencing their design and operational capabilities.Despite its importance, the term can sometimes lead to confusion among consumers who may not fully understand what nominal horse-power entails. It is crucial for consumers to recognize that this figure represents a theoretical maximum output rather than the actual power they might experience in everyday use. Therefore, when purchasing machinery or vehicles, it is advisable to consider additional performance metrics alongside nominal horse-power, such as torque, efficiency, and reliability.In conclusion, understanding nominal horse-power is vital for anyone interested in machinery, vehicles, or engineering in general. It provides a standardized measurement that facilitates comparisons and helps in making informed choices. As technology continues to evolve, the relevance of nominal horse-power remains significant, serving as a benchmark for performance across various industries. Whether you are a consumer looking to buy a new car or an engineer designing complex systems, grasping the concept of nominal horse-power is essential for navigating the world of power and performance effectively.

“名义马力”这一概念在工程领域中是一个重要术语，特别是在讨论发动机和机械时。它指的是一种标准化的功率输出测量，用作比较各种发动机或机器的参考点。这个测量至关重要，因为它帮助工程师和消费者理解不同设备的能力，使他们能够根据自己的需求做出明智的决策。历史上，“马力”一词可以追溯到18世纪末，当时詹姆斯·瓦特试图推销他的蒸汽机。他需要一种方法来展示他的发动机与当时普遍用于劳动的马匹的功率。因此，他计算出一匹马可以以一定的速度转动特定大小的磨轮，并由此得出了马力的概念。然而，随着技术的进步，变得明显的是，并非所有发动机在不同条件下的表现都相同。这导致了“名义马力”的引入，作为一种更统一的标准。“名义马力”通常在特定条件下定义，例如温度和压力，确保测量在不同类型的发动机之间是一致的。例如，一台标定为100“名义马力”的发动机将在理想条件下产生该功率。然而，在实际应用中，海拔、湿度和负载等因素会影响实际性能，这就是为什么理解名义马力和实际马力之间的区别至关重要。在实践中，“名义马力”具有多重用途。首先，它为制造商提供了一种准确宣传其产品的方法。当汽车制造商声明一辆汽车具有一定数量的“名义马力”时，潜在买家可以根据这一指标评估其相对性能。其次，它帮助工程师设计系统并选择适当的组件。了解“名义马力”有助于确定齿轮、皮带和其他机械部件的合适尺寸，以便高效地协同工作。此外，“名义马力”的概念不仅限于汽车和发动机。它还适用于海洋和航空工程等领域。例如，船只通常根据其发动机的“名义马力”进行评级，这有助于评估其速度和货物容量。同样，飞机发动机也根据其“名义马力”进行评估，影响其设计和操作能力。尽管其重要性，但这个术语有时会在消费者中引起混淆，因为他们可能不完全理解“名义马力”的含义。因此，消费者必须认识到，这一数字代表的是理论上的最大输出，而不是他们在日常使用中可能体验到的实际功率。因此，在购买机械或车辆时，建议消费者在考虑“名义马力”的同时，还要考虑扭矩、效率和可靠性等其他性能指标。总之，理解“名义马力”对任何对机械、车辆或一般工程感兴趣的人来说都是至关重要的。它提供了一种标准化的测量，促进比较并帮助做出明智的选择。随着技术的不断发展，“名义马力”的相关性仍然显著，作为各行业性能的基准。无论您是希望购买新车的消费者还是设计复杂系统的工程师，掌握“名义马力”的概念对于有效地导航功率和性能的世界至关重要。