closed boundary

简明释义

封闭边界;

英英释义

例句

1.The park has a closed boundary that prevents animals from entering the area.

这个公园有一个封闭边界，防止动物进入该区域。

2.The wildlife reserve is protected by a closed boundary to preserve its ecosystem.

野生动物保护区被一个封闭边界保护，以维护其生态系统。

3.The city implemented a closed boundary around the construction site for safety reasons.

出于安全考虑，城市在施工现场实施了一个封闭边界。

4.In mathematics, a closed boundary refers to a set that includes its limit points.

在数学中，封闭边界是指一个包含其极限点的集合。

5.During the experiment, we maintained a closed boundary to ensure accurate results.

在实验过程中，我们保持了一个封闭边界以确保结果的准确性。

作文

In the realm of geography and political science, the concept of a closed boundary refers to a demarcation that restricts movement or interaction between two distinct areas. This notion is particularly relevant in discussions about national borders, where a closed boundary can symbolize not only physical separation but also cultural, social, and economic isolation. The significance of such boundaries can be observed in various historical and contemporary contexts. For instance, during the Cold War, the Iron Curtain served as a closed boundary that divided Eastern and Western Europe, representing ideological differences and leading to significant geopolitical tensions.The implications of a closed boundary extend beyond mere geography; they influence trade, migration, and international relations. Countries with closed boundaries often experience limited economic opportunities due to restrictions on the flow of goods and services. For example, North Korea is known for its stringent border controls, which not only prevent foreign influence but also hinder its own citizens from accessing global markets. This isolation has contributed to the country's economic struggles and has shaped its unique political landscape.Moreover, closed boundaries can foster a sense of nationalism or identity among the populations within those borders. People may come to view their nation as distinct and separate from others, leading to a strong sense of belonging. However, this can also result in xenophobia or hostility towards outsiders, as seen in various countries where immigration policies are strictly enforced. The psychological impact of a closed boundary can lead to an 'us versus them' mentality, which complicates diplomatic relations and can incite conflict.On the other hand, some argue that closed boundaries are necessary for maintaining security and order. In times of crisis, such as during a pandemic or armed conflict, governments may impose strict border controls to protect their citizens. These measures can be seen as a temporary necessity, yet they often raise ethical questions about human rights and the treatment of individuals seeking refuge or asylum. The balance between security and compassion becomes a contentious issue when discussing the legitimacy of closed boundaries.In conclusion, the concept of a closed boundary encompasses a wide range of implications that affect not only geographical spaces but also the lives of individuals and communities. Understanding the complexities surrounding closed boundaries is crucial for navigating the challenges of globalization, where the movement of people and ideas across borders is increasingly common. As the world continues to evolve, the discourse on closed boundaries will remain relevant, highlighting the ongoing struggle between openness and restriction in our interconnected society.

在地理和政治科学领域，封闭边界的概念指的是限制两个不同区域之间的移动或互动的划分。这一概念在讨论国界时尤为相关，封闭边界不仅可以象征物理上的分隔，还代表文化、社会和经济的孤立。这种边界的重要性可以在各种历史和当代背景中观察到。例如，在冷战期间，铁幕作为一条将东欧和西欧分开的封闭边界，代表了意识形态的差异，并导致了重大的地缘政治紧张局势。封闭边界的影响不仅限于地理，它们还影响贸易、移民和国际关系。拥有封闭边界的国家通常由于限制商品和服务的流动而面临有限的经济机会。例如，朝鲜以其严格的边境管控而闻名，这不仅阻止了外来影响，也阻碍了其公民进入全球市场。这种孤立促成了该国的经济困境，并塑造了其独特的政治格局。此外，封闭边界可以在这些边界内的人群中培养民族主义或身份感。人们可能会将自己的国家视为与他国截然不同，导致强烈的归属感。然而，这也可能导致对外来者的仇外心理或敌意，正如在一些国家严格执行移民政策时所见。封闭边界的心理影响可能导致“我们与他们”的心态，这使得外交关系复杂化，并可能引发冲突。另一方面，一些人认为，封闭边界对于维护安全和秩序是必要的。在危机时期，例如在疫情或武装冲突期间，政府可能会实施严格的边境控制，以保护公民。这些措施可以被视为一种临时必要性，但它们常常引发关于人权和对寻求庇护或庇护者的对待的伦理问题。在讨论封闭边界的合法性时，安全与同情之间的平衡成为一个有争议的问题。总之，封闭边界的概念涵盖了一系列影响，不仅影响地理空间，还影响个人和社区的生活。理解围绕封闭边界的复杂性对于应对全球化带来的挑战至关重要，在全球化进程中，人们和思想的跨境流动日益普遍。随着世界的不断发展，关于封闭边界的讨论将继续保持相关性，突显出在我们互联社会中开放与限制之间持续存在的斗争。