first order estimate

简明释义

第一次近似法估算

英英释义

例句

1.The first order estimate of the energy consumption for the new building was significantly lower than expected.

新建筑的能源消耗的初步估算远低于预期。

2.The scientist presented a first order estimate of the population growth in the region over the next decade.

科学家展示了该地区未来十年人口增长的初步估算。

3.Before diving into detailed calculations, it's often useful to make a first order estimate to gauge feasibility.

在深入详细计算之前，通常有必要进行一个初步估算以评估可行性。

4.The engineer provided a first order estimate for the project costs, which helped us budget accordingly.

工程师提供了一个初步估算项目成本，这帮助我们相应地制定预算。

5.In our meeting, we discussed the first order estimate of the time required to complete the software development.

在我们的会议上，我们讨论了完成软件开发所需时间的初步估算。

作文

In the world of science and engineering, making predictions and estimates is a crucial part of the process. One common method used in various fields is the concept of a first order estimate. This term refers to an initial approximation of a value that is based on the simplest assumptions and calculations. It serves as a starting point for more detailed analysis and allows researchers and engineers to quickly assess the feasibility of their projects. The importance of a first order estimate cannot be overstated. In many cases, especially during the early stages of a project, time and resources are limited. A first order estimate provides a way to gauge whether an idea is worth pursuing without delving into complex calculations that may require significant time and effort. For instance, when designing a new product, engineers might use a first order estimate to determine the cost, materials needed, and potential market size before committing to a full development plan.To illustrate how a first order estimate works, consider a simple example in civil engineering. Suppose an engineer is tasked with estimating the amount of concrete needed for a new sidewalk. Instead of calculating the precise volume of concrete required based on detailed measurements, the engineer might take a first order estimate by measuring the length and width of the sidewalk and multiplying these dimensions to get a rough idea of the area. This quick calculation gives the engineer a ballpark figure that can inform decisions about budgeting and resource allocation.However, it is important to recognize the limitations of a first order estimate. While it provides a useful preliminary assessment, it is not always accurate. The simplicity of the assumptions made can lead to errors, especially in complex systems where multiple variables interact in unpredictable ways. Therefore, after obtaining a first order estimate, it is often necessary to conduct further analysis to refine the estimate and ensure its accuracy. This might involve using more sophisticated models or simulations that take into account additional factors and uncertainties.In addition to engineering, the concept of a first order estimate is also prevalent in economics and finance. For example, economists may use a first order estimate to predict the impact of a new policy on the economy. By making simplified assumptions about how consumers and businesses will react, they can generate initial forecasts that guide further research and discussion. In conclusion, the first order estimate is a vital tool in many fields, providing a quick and efficient way to make preliminary assessments. It allows professionals to evaluate ideas and projects without getting bogged down in intricate details from the outset. However, while a first order estimate can offer valuable insights, it is essential to follow up with more comprehensive analyses to ensure that decisions are based on accurate and reliable information. Understanding the role of a first order estimate and its implications can significantly enhance one's ability to navigate the complexities of problem-solving in both technical and non-technical domains.

在科学和工程的世界中，进行预测和估计是过程中的关键部分。一个常用的方法是在各个领域中使用的“一阶估计”这一概念。这个术语指的是基于最简单的假设和计算的值的初步近似。它作为更详细分析的起点，使研究人员和工程师能够快速评估他们项目的可行性。“一阶估计”的重要性不容小觑。在许多情况下，特别是在项目的早期阶段，时间和资源有限。“一阶估计”提供了一种方法，以评估一个想法是否值得追求，而不必深入复杂的计算，这些计算可能需要大量的时间和精力。例如，在设计新产品时，工程师可能会使用“一阶估计”来确定成本、所需材料和潜在市场规模，然后再决定全面开发计划。为了说明“一阶估计”的工作原理，考虑一个土木工程中的简单例子。假设一名工程师被要求估算新的人行道所需的混凝土量。工程师可能不会根据详细的测量计算所需混凝土的确切体积，而是通过测量人行道的长度和宽度并将这些尺寸相乘来得出粗略的面积。这一快速计算为工程师提供了一个大致的数字，可以指导预算和资源分配的决策。然而，重要的是要认识到“一阶估计”的局限性。虽然它提供了有用的初步评估，但并不总是准确的。由于所做假设的简单性，可能导致错误，尤其是在多个变量以不可预测的方式相互作用的复杂系统中。因此，在获得“一阶估计”后，通常需要进行进一步分析，以细化估计并确保其准确性。这可能涉及使用更复杂的模型或模拟，考虑额外的因素和不确定性。除了工程，“一阶估计”的概念在经济学和金融中也很常见。例如，经济学家可能会使用“一阶估计”来预测新政策对经济的影响。通过对消费者和企业反应的简化假设，他们可以生成初步预测，指导进一步的研究和讨论。总之，“一阶估计”是许多领域的重要工具，提供了一种快速有效的方法来进行初步评估。它使专业人士能够在一开始就评估想法和项目，而不必陷入复杂的细节。然而，虽然“一阶估计”可以提供有价值的见解，但必须跟进更全面的分析，以确保决策基于准确和可靠的信息。理解“一阶估计”的作用及其影响可以显著增强一个人在技术和非技术领域解决问题的能力。