order of magnitude

简明释义

恒星等级;数量级

英英释义

例句

1.The budget for this project is an order of magnitude 数量级 higher than we initially estimated.

这个项目的预算比我们最初估计的高了一个数量级。

2.In terms of energy consumption, electric cars are an order of magnitude 数量级 more efficient than traditional vehicles.

在能耗方面，电动车比传统汽车高效了一个数量级。

3.The population of the city increased by an order of magnitude 数量级 compared to last year.

与去年相比，这座城市的人口增加了一个数量级。

4.When it comes to data storage, this new system can handle an order of magnitude 数量级 more information than the previous one.

谈到数据存储，这个新系统可以处理比之前高一个数量级的信息。

5.The speed of the new processor is an order of magnitude 数量级 faster than its predecessor.

新处理器的速度比前任快了一个数量级。

作文

Understanding the concept of order of magnitude is crucial in various fields, including science, engineering, and economics. The term refers to the scale or size of a quantity measured in powers of ten. For instance, if one value is ten times greater than another, it is said to differ by one order of magnitude. This concept helps us compare vastly different quantities and understand their relative sizes more intuitively.In scientific research, the order of magnitude plays a significant role in analyzing data and making estimates. For example, when studying astronomical distances, we often deal with numbers that vary greatly. The distance from Earth to the Moon is approximately 384,400 kilometers, while the distance to the nearest star, Proxima Centauri, is about 4.24 light-years, which translates to roughly 40 trillion kilometers. These two distances differ by several orders of magnitude, allowing scientists to categorize them effectively and communicate their findings more clearly.In engineering, understanding order of magnitude can aid in project planning and resource allocation. When estimating costs for a construction project, engineers might consider the order of magnitude of various materials and labor expenses. If the cost of steel is estimated at $1,000 per ton and concrete at $100 per ton, the difference in their costs is an order of magnitude apart. This understanding helps engineers prioritize materials and budget accordingly.Economists also utilize the order of magnitude when discussing economic indicators. For example, if one country has a GDP of $1 trillion and another has a GDP of $10 trillion, the latter's economy is an order of magnitude larger. This comparison provides a clearer perspective on economic power and growth potential. By using order of magnitude, economists can simplify complex data and present it in a way that is easier to digest for policymakers and the public.Moreover, the order of magnitude is not limited to numerical comparisons; it can also apply to concepts such as time. For instance, the lifespan of a housefly is about 30 days, while that of a tortoise can exceed 100 years. These two lifespans differ by several orders of magnitude, highlighting the vast differences in the life cycles of different species.In summary, the term order of magnitude serves as a powerful tool for simplifying and comparing large-scale differences across various contexts. Whether in science, engineering, or economics, understanding this concept allows individuals to grasp the relative significance of different quantities. By appreciating the order of magnitude, we can better navigate the complexities of our world, make informed decisions, and communicate our ideas more effectively. As we continue to encounter data and information in our daily lives, keeping the order of magnitude in mind will help us maintain a sense of perspective and clarity.

理解数量级的概念在科学、工程和经济等多个领域中至关重要。该术语指的是以十的幂次来衡量的数量的规模或大小。例如，如果一个值比另一个值大十倍，则可以说它的差异为一个数量级。这个概念帮助我们比较截然不同的数量，并更直观地理解它们的相对大小。在科学研究中，数量级在分析数据和进行估算时发挥着重要作用。例如，在研究天文距离时，我们常常处理变化很大的数字。地球到月球的距离约为384,400公里，而到最近的恒星——比邻星的距离约为4.24光年，换算成大约40万亿公里。这两个距离相差多个数量级，使科学家能够有效地对其进行分类并更清晰地传达他们的发现。在工程学中，理解数量级可以帮助项目规划和资源分配。当估算建筑项目的成本时，工程师可能会考虑各种材料和人工费用的数量级。如果钢材的估算成本为每吨1,000美元，而混凝土的成本为每吨100美元，那么它们的成本差异相差一个数量级。这种理解帮助工程师优先考虑材料并相应地制定预算。经济学家在讨论经济指标时也会利用数量级。例如，如果一个国家的GDP为1万亿美元，而另一个国家的GDP为10万亿美元，后者的经济就大了一个数量级。这种比较提供了对经济实力和增长潜力的更清晰视角。通过使用数量级，经济学家可以简化复杂数据，并以更易于政策制定者和公众消化的方式呈现。此外，数量级不仅限于数值比较；它还可以应用于时间等概念。例如，苍蝇的生命周期约为30天，而乌龟的生命周期可以超过100年。这两种生命周期相差多个数量级，突显了不同物种生命周期的巨大差异。总之，术语数量级作为一个强有力的工具，用于简化和比较各个背景下的大规模差异。无论是在科学、工程还是经济中，理解这个概念使个人能够抓住不同数量之间的相对重要性。通过欣赏数量级，我们可以更好地驾驭我们世界的复杂性，做出明智的决策，并更有效地传达我们的想法。随着我们在日常生活中继续接触数据和信息，牢记数量级将帮助我们保持透视和清晰感。