effective value

简明释义

有效值

英英释义

例句

1.The effective value of the product after discounts was surprisingly low.

折扣后的产品有效价值出乎意料地低。

2.Calculating the effective value of your salary can help you understand your purchasing power.

计算你工资的有效价值可以帮助你理解你的购买力。

3.The effective value of the investment was calculated to ensure a good return.

投资的有效价值被计算出来，以确保良好的回报。

4.To determine the effective value of a project, we need to consider both costs and benefits.

要确定一个项目的有效价值，我们需要考虑成本和收益。

5.In this context, the effective value of the currency is crucial for international trade.

在这种情况下，货币的有效价值对国际贸易至关重要。

作文

In the realm of mathematics and engineering, the term effective value refers to a quantity that represents the equivalent value of a varying signal or quantity. This concept is particularly important in the analysis of alternating current (AC) circuits, where the voltage and current are not constant but fluctuate over time. The effective value provides a means to quantify these fluctuations in a way that can be compared to direct current (DC) values. For instance, the effective value of an AC voltage is the root mean square (RMS) value, which allows engineers to calculate the power delivered by the AC system as if it were a DC system.Understanding the effective value is crucial for anyone working with electrical systems because it simplifies the complexity of AC signals. Without this concept, it would be challenging to determine how much power an AC circuit can deliver to a load. The effective value essentially condenses the behavior of the AC waveform into a single number, making it easier to design and analyze electrical systems.Moreover, the effective value is not limited to electrical engineering; it also finds applications in fields such as statistics and economics. In statistics, for example, the effective value might refer to a measure of central tendency that accurately reflects the data set's characteristics. In economics, it can represent the real purchasing power of a currency after accounting for inflation, thereby providing a clearer picture of economic health.One practical example of the importance of effective value can be found in household electricity bills. When a utility company charges customers for their electricity usage, they often base their rates on the effective value of the voltage supplied to homes. This means that even if the voltage fluctuates throughout the day, the customer is billed based on a consistent measure that reflects their actual usage.The significance of the effective value extends beyond just theoretical calculations; it impacts real-world applications and decision-making processes. For instance, businesses must consider the effective value of their investments when assessing profitability. By evaluating the effective value of returns, companies can make informed choices about where to allocate resources and how to maximize their financial outcomes.In conclusion, the concept of effective value serves as a vital tool in various disciplines, providing clarity and consistency in the face of variability. Whether in electrical engineering, statistics, or economics, understanding and applying the effective value enables professionals to make better decisions and achieve more accurate results. As we continue to navigate complex systems and data, the effective value will undoubtedly remain a key concept that aids in our comprehension and application of varied phenomena.

在数学和工程领域，术语有效值指的是一个量，它代表了一个变化信号或数量的等效值。这个概念在交流电（AC）电路的分析中尤为重要，因为电压和电流并不是恒定的，而是随时间波动。有效值提供了一种量化这些波动的方法，可以与直流电（DC）值进行比较。例如，交流电压的有效值是均方根（RMS）值，这使得工程师能够计算交流系统所提供的功率，就好像它是一个直流系统。理解有效值对于任何从事电气系统工作的人来说都是至关重要的，因为它简化了交流信号的复杂性。如果没有这个概念，确定交流电路能向负载提供多少功率将会非常困难。有效值本质上将交流波形的行为浓缩成一个数字，使得设计和分析电气系统变得更容易。此外，有效值不仅限于电气工程；它还在统计学和经济学等领域中应用。在统计学中，例如，有效值可能指的是准确反映数据集特征的集中趋势度量。在经济学中，它可以表示经过通货膨胀调整后的货币实际购买力，从而提供对经济健康状况的更清晰的认识。有效值重要性的一个实际例子可以在家庭电费账单中找到。当公用事业公司向客户收取电费时，他们通常基于提供给家庭的电压的有效值来计算费用。这意味着即使电压在一天中波动，客户的账单也是基于一个一致的度量，反映了他们的实际使用情况。有效值的重要性不仅限于理论计算；它影响现实世界的应用和决策过程。例如，企业在评估盈利能力时必须考虑投资的有效值。通过评估回报的有效值，公司可以做出明智的选择，决定如何分配资源以及如何最大化财务成果。总之，有效值的概念在各个学科中作为一种重要工具，提供了在变异性面前的清晰和一致性。无论是在电气工程、统计学还是经济学，理解和应用有效值使专业人士能够做出更好的决策并获得更准确的结果。随着我们继续应对复杂的系统和数据，有效值无疑将继续作为一个关键概念，帮助我们理解和应用各种现象。