background level

简明释义

背景值

英英释义

例句

1.The background level of stress can affect your overall health and well-being.

压力的背景水平会影响你的整体健康和幸福感。

2.Researchers found that the background level of radiation in the area was higher than expected.

研究人员发现该地区的背景水平辐射高于预期。

3.When measuring air quality, it's important to consider the background level of pollutants.

在测量空气质量时，考虑污染物的背景水平是很重要的。

4.The noise in the office was at a background level of around 50 decibels, which made it hard to concentrate.

办公室的噪音保持在大约背景水平为50分贝，这使得人们很难集中注意力。

5.In order to assess the impact of the new factory, we need to establish the background level of emissions.

为了评估新工厂的影响，我们需要确定排放的背景水平。

作文

In the realm of environmental science, the term background level refers to the natural concentration of a substance in the environment, unaffected by human activities. Understanding these levels is crucial for scientists and policymakers alike, as it provides a baseline against which changes due to pollution or other anthropogenic factors can be measured. For instance, when assessing air quality, researchers must first determine the background level of pollutants such as carbon dioxide or particulate matter. This helps distinguish between normal fluctuations and abnormal spikes that may indicate a pollution event.One significant aspect of measuring background levels is the challenge posed by variability. Natural systems are inherently dynamic, influenced by factors such as weather patterns, seasonal changes, and geographic differences. As a result, establishing a reliable background level often requires extensive data collection over time and across various locations. This data serves as a reference point, allowing scientists to identify trends and anomalies in environmental conditions.Moreover, the concept of background level is not limited to environmental science; it also applies to fields such as psychology and economics. In psychology, for example, a background level of stress might refer to the baseline anxiety experienced by individuals in their daily lives. Researchers can then study how specific events or stimuli impact this baseline, leading to a deeper understanding of human behavior and mental health.In economics, the background level of inflation serves as a benchmark for evaluating economic performance. Economists analyze historical data to determine what constitutes a normal inflation rate, which aids in decision-making regarding monetary policy. When inflation rates deviate significantly from this background level, it prompts further investigation into the underlying causes and potential solutions.The importance of recognizing background levels extends to public health as well. For instance, health officials monitor the background level of certain diseases within a population to detect outbreaks early. By establishing what is considered normal, they can quickly identify unusual increases in cases, allowing for timely interventions to protect public health.In conclusion, the concept of background level is vital across various disciplines. It provides a necessary context for understanding changes and impacts, whether in environmental science, psychology, economics, or public health. Establishing accurate background levels requires diligent research and data analysis, but the insights gained are invaluable for informed decision-making and effective policy implementation. As we continue to navigate complex challenges in our world, understanding these baseline levels will remain essential for fostering a healthier and more sustainable future.

在环境科学领域，术语背景水平指的是环境中某种物质的自然浓度，不受人类活动的影响。理解这些水平对科学家和政策制定者都至关重要，因为它提供了一个基线，可以用来衡量由于污染或其他人类因素而发生的变化。例如，在评估空气质量时，研究人员必须首先确定污染物（如二氧化碳或颗粒物）的背景水平。这有助于区分正常波动和异常峰值，后者可能表明污染事件。测量背景水平的一个重要方面是变异性带来的挑战。自然系统本质上是动态的，受到天气模式、季节变化和地理差异等因素的影响。因此，建立可靠的背景水平通常需要在时间和地点上进行广泛的数据收集。这些数据作为参考点，使科学家能够识别环境条件中的趋势和异常。此外，背景水平的概念不仅限于环境科学；它也适用于心理学和经济学等领域。例如，在心理学中，背景水平的压力可能指的是个体在日常生活中经历的基线焦虑。研究人员可以研究特定事件或刺激如何影响这一基线，从而深入了解人类行为和心理健康。在经济学中，背景水平的通货膨胀作为评估经济表现的基准。经济学家分析历史数据，以确定什么构成正常的通货膨胀率，这有助于在货币政策方面做出决策。当通货膨胀率显著偏离该背景水平时，会促使进一步调查潜在原因和解决方案。认识到背景水平的重要性也扩展到了公共卫生领域。例如，卫生官员监测某种疾病在特定人群中的背景水平，以便及早发现疫情。通过建立什么被视为正常，他们可以迅速识别病例的异常增加，从而及时采取干预措施以保护公共健康。总之，背景水平的概念在各个学科中都是至关重要的。它为理解变化和影响提供了必要的背景，无论是在环境科学、心理学、经济学还是公共卫生领域。建立准确的背景水平需要勤奋的研究和数据分析，但所获得的见解对于明智的决策和有效的政策实施是无价的。随着我们继续应对世界上的复杂挑战，理解这些基线水平将仍然是促进更健康和可持续未来的关键。