critical load

简明释义

临界负载

英英释义

例句

1.The weight of the equipment surpassed the critical load of the floor, prompting immediate evacuation.

设备的重量超过了地板的临界负荷，促使立即疏散。

2.Engineers must assess the critical load before construction begins on any new project.

工程师在任何新项目开工前必须评估临界负荷。

3.The bridge was designed to withstand a maximum critical load of 20 tons, ensuring safety for heavy vehicles.

这座桥的设计能够承受最大临界负荷为20吨，确保重型车辆的安全。

4.In structural engineering, calculating the critical load is essential to prevent collapse.

在结构工程中，计算临界负荷对于防止倒塌至关重要。

5.The critical load for the roof was exceeded during the snowstorm, leading to partial collapse.

在暴风雪期间，屋顶的临界负荷被超过，导致部分坍塌。

作文

In the field of environmental science, the term critical load refers to the maximum amount of a pollutant that an ecosystem can receive without experiencing significant harmful effects. This concept is particularly important when discussing air quality and its impact on various ecosystems. Understanding critical load helps scientists and policymakers determine safe levels of pollutants, such as nitrogen and sulfur compounds, which can lead to acid rain and nutrient imbalances in soil and water bodies.For instance, when nitrogen is deposited in excess, it can cause eutrophication in aquatic systems, leading to algal blooms that deplete oxygen levels, harming fish and other aquatic life. Therefore, identifying the critical load for nitrogen deposition in a specific area allows for better management of land use and agricultural practices. It informs regulations that aim to reduce emissions from industries and vehicles, ultimately protecting sensitive habitats.Moreover, the concept of critical load is not limited to nitrogen. It applies to various substances, including heavy metals and ozone. Each ecosystem has its own unique tolerance levels, and understanding these thresholds is vital for conservation efforts. For example, forests may have a different critical load for sulfur compared to wetlands. By conducting research and monitoring pollution levels, scientists can establish these critical thresholds, which are essential for maintaining biodiversity and ecosystem health.In addition to ecological implications, the notion of critical load also intersects with public health. Airborne pollutants can have detrimental effects on human health, leading to respiratory diseases and other health issues. By understanding the critical load of certain pollutants, regulatory agencies can set air quality standards that protect both the environment and public health. This dual focus is crucial in developing comprehensive policies that address environmental degradation while safeguarding community well-being.Furthermore, the concept of critical load emphasizes the importance of interdisciplinary collaboration. Environmental scientists, ecologists, policymakers, and public health officials must work together to assess the impacts of pollution and develop effective strategies to mitigate them. This collaborative approach ensures that all aspects of the issue are considered, leading to more robust and sustainable solutions.In conclusion, the term critical load serves as a key indicator in environmental science, guiding our understanding of how much pollution an ecosystem can tolerate before suffering adverse effects. By recognizing and respecting these limits, we can take meaningful steps towards preserving our natural environments and promoting healthier communities. As we face increasing environmental challenges, the concept of critical load will remain a vital tool in our efforts to achieve sustainability and protect the planet for future generations.

在环境科学领域，术语critical load指的是生态系统能够接收的污染物的最大量，而不会经历显著的有害影响。这个概念在讨论空气质量及其对各种生态系统的影响时尤为重要。理解critical load有助于科学家和政策制定者确定安全的污染物水平，例如氮和硫化合物，这些物质可能导致酸雨和土壤及水体中的营养失衡。例如，当氮的沉积量过多时，会导致水体富营养化，形成藻类暴发，耗尽氧气，对鱼类和其他水生生物造成伤害。因此，识别特定区域氮沉积的critical load有助于更好地管理土地使用和农业实践。它为旨在减少工业和车辆排放的法规提供了依据，最终保护敏感栖息地。此外，critical load的概念并不限于氮。它适用于各种物质，包括重金属和臭氧。每个生态系统都有其独特的耐受水平，理解这些临界阈值对于保护工作至关重要。例如，森林对硫的critical load可能与湿地不同。通过进行研究和监测污染水平，科学家可以建立这些关键阈值，这对于维护生物多样性和生态系统健康是必不可少的。除了生态影响之外，critical load的概念还与公共健康交叉。空气中的污染物对人类健康有害，可能导致呼吸疾病和其他健康问题。通过理解某些污染物的critical load，监管机构可以设定保护环境和公众健康的空气质量标准。这种双重关注在制定全面政策以应对环境退化的同时保护社区福祉方面至关重要。此外，critical load的概念强调跨学科合作的重要性。环境科学家、生态学家、政策制定者和公共卫生官员必须共同努力评估污染的影响，并制定有效的缓解策略。这种协作方法确保所有方面的问题都得到考虑，从而导致更强大和可持续的解决方案。总之，术语critical load作为环境科学中的一个关键指标，指导我们理解生态系统能够容忍多少污染而不受不利影响。通过认识和尊重这些限制，我们可以采取有意义的步骤来保护我们的自然环境，并促进更健康的社区。随着我们面临日益严重的环境挑战，critical load的概念将继续成为我们实现可持续发展和保护地球的重要工具，以造福未来世代。