vacuum

简明释义

英[ˈvækjuːm]美[ˈvækjuːm]

n. 真空，真空容器；真空吸尘器；空白，空虚；（用真空吸尘器所做的）清洁，清扫

v. 用真空吸尘器打扫

adj. 利用真空的；真空的；产生真空的

复 数 v a c u u m s 或 v a c u a

第 三 人 称 单 数 v a c u u m s

现 在 分 词 v a c u u m i n g

过 去 式 v a c u u m e d

过 去 分 词 v a c u u m e d

英英释义

单词用法

同义词

反义词

例句

1.The dust is drawn into the vacuum cleaner.

灰尘被吸入了真空吸尘器。

2.The Soviet scientist made his experiments with a bad light, on wooden tables, using an old vacuum cleaner instead of a compressor.

这位苏联科学家在木桌上，借着糟糕的灯光做实验，用的是旧吸尘器而不是压缩机。

3.It was only when electric motors became advanced that vacuum cleaners became common.

只有电动机变得先进时，真空吸尘器才会普遍使用。

4.The latest Japanese vacuum cleaners contain sensors that detect the amount of dust and type of floor.

日本最新款吸尘器装有传感器，能测出灰尘量和地板类型。

5.The vacuum has an unpleasant smell.

这个真空吸尘器有股难闻的气味。

6.The main reason people pay extra for a Dyson is because it is a vacuum cleaner with a trendy brand.

人们愿意花更多的钱买戴森是因为它是一个时尚品牌的真空吸尘器。

7.His resignation has created a vacuum which cannot easily be filled.

他的引退造成了难以填补的空白。

8.I need to clean the carpet, so I will get the vacuum 吸尘器 from the closet.

我需要清洁地毯，所以我会从壁橱里拿出吸尘器。

9.Make sure to seal the bag tightly to create a vacuum 真空 and preserve the food.

确保将袋子密封紧，以创造一个真空并保存食物。

10.The vacuum 真空 of space is what makes it possible for astronauts to float.

太空的真空使宇航员能够漂浮。

11.After using the vacuum 吸尘器, the floor feels much cleaner.

使用完吸尘器后，地板感觉干净多了。

12.The scientist conducted an experiment in a vacuum 真空 chamber to eliminate air resistance.

科学家在真空室中进行实验，以消除空气阻力。

作文

The concept of a vacuum is often misunderstood. Many people think of it simply as an absence of air or matter, but it is much more complex than that. A vacuum can be defined scientifically as a space entirely devoid of matter, where the pressure is significantly lower than atmospheric pressure. This phenomenon is crucial in various fields, including physics, engineering, and even medicine. In physics, a perfect vacuum is an ideal state that scientists strive to achieve in experiments. For instance, when studying the properties of light, researchers often use a vacuum to eliminate air resistance and other interferences. This allows them to observe the behavior of light waves without any external factors altering their path. The creation of a vacuum is essential for achieving accurate and reliable results in such experiments.Moreover, the concept of vacuum extends beyond the physical realm. In everyday life, we often encounter the term in various contexts. For example, when we talk about a vacuum cleaner, we refer to a device that uses suction to remove dirt and debris from surfaces. This appliance operates on the principle of creating a partial vacuum inside its chamber, which effectively pulls in particles and cleans our homes. Additionally, the idea of a vacuum can be metaphorical. In psychology, one might describe feelings of loneliness or emptiness as being in a vacuum. This emotional state can occur when individuals feel isolated from others or lack meaningful connections in their lives. Just as a physical vacuum is devoid of substance, this emotional vacuum can leave a person feeling hollow and unfulfilled. The significance of understanding vacuum lies in its applications across various domains. In space exploration, for example, astronauts must be aware of the dangers of a vacuum. The absence of air pressure in space can have severe effects on the human body, making it imperative for astronauts to wear specialized suits that provide necessary protection. These suits are designed to maintain pressure around the body and supply oxygen, preventing the harmful consequences of exposure to a vacuum. Furthermore, the study of vacuum has led to numerous technological advancements. In electronics, vacuum tubes were once essential components for amplifying signals and enabling communication. Although they have largely been replaced by transistors, the principles behind vacuum technology continue to influence modern innovations. In conclusion, the word vacuum encompasses a wide range of meanings and implications. From its scientific definition as a space devoid of matter to its metaphorical usage in describing emotional states, the concept of a vacuum is both fascinating and multifaceted. Understanding vacuum is not only crucial for scientific pursuits but also enriches our comprehension of everyday experiences. Whether we are discussing the physical properties of a vacuum in a lab or reflecting on the emotional vacuum some may feel in their lives, this term serves as a reminder of the complexities inherent in both the natural world and the human experience.

“真空”这个概念常常被误解。许多人认为它仅仅是空气或物质的缺失，但它远比这复杂得多。科学上可以将“真空”定义为一个完全没有物质的空间，其压力显著低于大气压力。这种现象在物理学、工程学甚至医学等多个领域至关重要。在物理学中，完美的“真空”是科学家在实验中努力实现的理想状态。例如，在研究光的性质时，研究人员通常使用“真空”来消除空气阻力和其他干扰。这使得他们能够观察光波的行为，而不受外部因素改变其路径的影响。创造“真空”对在此类实验中获得准确可靠的结果至关重要。此外，“真空”的概念超越了物理领域。在日常生活中，我们经常在各种上下文中遇到这个术语。例如，当我们谈论吸尘器时，我们指的是一种利用吸力从表面去除灰尘和碎屑的设备。该设备的工作原理是在其腔体内创建部分“真空”，有效地吸入颗粒并清洁我们的家。此外，“真空”的概念也可以是隐喻性的。在心理学中，人们可能会将孤独或空虚的感觉描述为处于一个“真空”中。这种情感状态可能发生在个人感到与他人隔离或缺乏有意义的联系时。正如物理“真空”缺乏实质一样，这种情感“真空”可能使人感到空洞和未被满足。理解“真空”的重要性在于它在各个领域的应用。例如，在太空探索中，宇航员必须意识到“真空”的危险。太空中的空气压力缺失可能对人体产生严重影响，这使得宇航员必须穿着专门的服装以提供必要的保护。这些服装旨在维持身体周围的压力并提供氧气，以防止暴露于“真空”中的有害后果。此外，对“真空”的研究促成了许多技术进步。在电子学中，真空管曾是放大信号和实现通信的重要组件。尽管它们在很大程度上已被晶体管取代，但“真空”技术背后的原理仍然影响着现代创新。总之，“真空”这个词涵盖了广泛的含义和影响。从它作为没有物质的空间的科学定义，到它在描述情感状态时的隐喻用法，“真空”的概念既迷人又多面。理解“真空”不仅对科学追求至关重要，还丰富了我们对日常经历的理解。无论我们是在实验室讨论“真空”的物理特性，还是反思一些人在生活中可能感受到的情感“真空”，这个术语都提醒我们自然世界和人类经验中固有的复杂性。