impactor

简明释义

英[ɪmˈpæktə(r)]美[ɪmˈpæktər]

n. 撞击器；悬浮微粒的取样器

英英释义

单词用法

同义词

反义词

例句

1.Experiments have shown that the said impactor features flexibility in the aspect of time, space, objective and environment.

实验数据表明，该冲击器具有时间、空间、对象、环境等柔性。

2.In this paper, the mathematic model of nitrogen type hydraulic impactor is established based on its working principle.

针对氮爆式液压破碎锤工作原理，建立了液压锤的数学模型。

3.According to Finite Element Method, the impactor is considered as a discrete mass system in terms of 3D solid element with initial velocity, and 2D shell element is used for target plate.

首先采用有限元法，将撞击体离散成由三维实体单元构成的具有一定初始速度的离散质量系统，对靶板采用二维壳单元离散。

4.The working performance of the hydraulic percussion impactor is one of the main factors which affect its working effect in practice.

液动冲击器工作性能是影响冲击旋转钻井技术现场应用效果的主要因素之一。

5.A small change in the design of a slit bioaerosol impactor significantly improves its collection characteristics.

稍微改变纵向生物性气胶冲击器设计可有效改善其收集特征。

6.In such collisions, the impactor is completely destroyed and its material is incorporated into the larger body.

在这种碰撞中，撞击者被完全摧毁，其物质被并入较大的天体中。

7.Scientists study the effects of an impactor on Earth's atmosphere.

科学家研究撞击体对地球大气的影响。

8.The impactor left a large crater in the desert after its collision.

这次碰撞后，撞击体在沙漠中留下了一个巨大的陨石坑。

9.Understanding the role of an impactor is crucial for planetary defense.

理解撞击体的作用对于行星防御至关重要。

10.The asteroid is a significant impactor that could potentially cause mass extinction.

这颗小行星是一个重要的撞击体，可能导致大规模灭绝。

11.The research team is developing a simulation to predict the impact of a potential impactor.

研究团队正在开发一个模拟，以预测潜在撞击体的影响。

作文

In recent years, the term impactor has gained prominence in various fields, particularly in science and environmental studies. An impactor is typically defined as an object that strikes another object, leading to significant changes or effects on the latter. This concept can be applied in numerous contexts, from physics to ecology, and even social sciences. Understanding the role of an impactor is crucial for analyzing the consequences of actions and events in our world.One of the most well-known examples of an impactor is the asteroid that is believed to have contributed to the extinction of the dinosaurs approximately 66 million years ago. This celestial body struck the Earth with immense force, causing catastrophic environmental changes that led to the demise of many species. The study of such impactors not only helps scientists understand the past but also prepares us for potential future threats from space.In a more contemporary context, human activities serve as powerful impactors on the environment. Deforestation, pollution, and urbanization are all actions that significantly alter ecosystems. For instance, when large areas of forest are cleared for agriculture or development, the local wildlife is often displaced, and the balance of the ecosystem is disrupted. These human-induced impactors can lead to long-term consequences, such as loss of biodiversity and climate change.Moreover, the concept of impactor can extend to social dynamics. In sociology, certain individuals or groups can act as impactors within their communities. Activists, leaders, and influencers often drive social change by challenging the status quo and inspiring others to take action. Their ability to affect public opinion and mobilize resources makes them significant impactors in shaping societal values and norms.Understanding the nature of impactors allows us to appreciate the interconnectedness of various systems, whether they are ecological, social, or technological. For example, technological advancements can serve as impactors that transform industries and economies. The rise of the internet has revolutionized communication, commerce, and education, creating ripple effects across the globe. As we navigate these changes, it is essential to consider both the positive and negative impacts of such impactors.In conclusion, the term impactor encapsulates a broad range of phenomena that influence our world. From natural events like asteroid impacts to human actions that reshape our environment and society, understanding impactors is vital for addressing challenges and harnessing opportunities. By studying the effects of various impactors, we can better prepare for the future and strive for a more sustainable and equitable world.

近年来，术语impactor在各个领域中变得越来越重要，特别是在科学和环境研究中。impactor通常被定义为一个物体撞击另一个物体，从而对后者产生重大变化或影响。这个概念可以应用于许多背景，从物理学到生态学，甚至社会科学。理解impactor的作用对于分析我们世界中行动和事件的后果至关重要。一个最著名的impactor示例是据信导致恐龙灭绝的那颗小行星，大约在6600万年前。这颗天体以巨大的力量撞击地球，造成灾难性的环境变化，导致许多物种的灭绝。对这样的impactors的研究不仅帮助科学家了解过去，还为我们准备应对未来的太空威胁提供了依据。在更当代的背景下，人类活动作为强大的impactors对环境产生影响。森林砍伐、污染和城市化都是显著改变生态系统的行为。例如，当大片森林被清除用于农业或开发时，当地野生动物往往会被迫迁移，生态系统的平衡被打破。这些人类引起的impactors可能导致长期后果，如生物多样性的丧失和气候变化。此外，impactor的概念还可以扩展到社会动态。在社会学中，某些个人或群体可以在其社区中充当impactors。活动家、领导者和影响者经常通过挑战现状并激励他人采取行动来推动社会变革。他们影响公众舆论和动员资源的能力使他们成为塑造社会价值观和规范的重要impactors。理解impactors的本质使我们能够欣赏各种系统之间的相互联系，无论是生态、社会还是技术。例如，技术进步可以作为impactors，改变行业和经济。互联网的兴起彻底改变了通信、商业和教育，创造了全球范围内的涟漪效应。当我们应对这些变化时，考虑这些impactors的正面和负面影响至关重要。总之，术语impactor概括了影响我们世界的广泛现象。从自然事件如小行星撞击到重塑我们环境和社会的人类行为，理解impactors对于应对挑战和利用机会至关重要。通过研究各种impactors的影响，我们可以更好地为未来做好准备，并努力实现一个更加可持续和公平的世界。