high vaccum

简明释义

高真空

英英释义

例句

1.The high vacuum chamber is used to study the behavior of materials under extreme conditions.

该高真空腔体用于研究材料在极端条件下的行为。

2.The laboratory requires a high vacuum system for conducting sensitive experiments.

实验室需要一个高真空系统来进行敏感实验。

3.A high vacuum pump can achieve pressures lower than 10^-6 torr.

一台高真空泵可以达到低于10^-6托的压力。

4.Researchers are developing new technologies to maintain high vacuum levels more efficiently.

研究人员正在开发新技术，以更有效地维持高真空水平。

5.In semiconductor manufacturing, a high vacuum environment is essential to prevent contamination.

在半导体制造中，高真空环境对于防止污染至关重要。

作文

In the field of physics and engineering, the term high vacuum refers to a condition where the pressure is significantly lower than atmospheric pressure. This state is crucial for various applications, including scientific research, manufacturing processes, and even in the realm of space exploration. To truly appreciate the importance of high vacuum, one must understand its implications and uses in modern technology.Firstly, let's explore what constitutes a high vacuum. Generally, a vacuum is considered 'high' when the pressure drops below 10^-3 torr (or 1 mmHg). At this level, the number of gas molecules present is drastically reduced, which minimizes the interference of air in experiments or processes. For example, in semiconductor manufacturing, achieving a high vacuum is essential to prevent contamination during the deposition of thin films. Any impurities could compromise the quality and performance of electronic devices.Moreover, high vacuum environments are vital in research laboratories, particularly in fields such as physics and materials science. Experiments involving electron beams, for instance, require a high vacuum to ensure that electrons do not collide with air molecules, which would scatter them and lead to inaccurate results. The ability to maintain a high vacuum allows scientists to conduct precise measurements and obtain reliable data, pushing the boundaries of our understanding of the universe.In addition to scientific research, high vacuum technology plays a significant role in the production of vacuum tubes and other electronic components. These devices rely on the absence of air to function correctly. When a vacuum is created, the flow of electrons can be controlled more effectively, leading to improved performance in amplifiers and oscillators. Without high vacuum conditions, the efficiency of these components would be severely compromised.Furthermore, the aerospace industry heavily depends on high vacuum systems for testing spacecraft and satellites. Before launching, these vehicles must undergo rigorous testing in vacuum chambers that simulate the conditions of outer space. By creating a high vacuum, engineers can assess how these crafts will perform in the harsh environment of space, ensuring their reliability and safety during missions.It is also worth noting that achieving a high vacuum is not without its challenges. The equipment used to create and maintain such environments, such as vacuum pumps and chambers, must be meticulously designed and maintained. Any leaks or failures in the system can lead to pressure fluctuations that may ruin sensitive experiments or manufacturing processes. Therefore, engineers and scientists must be well-versed in vacuum technology to ensure successful outcomes.In conclusion, the concept of high vacuum is integral to many aspects of modern science and technology. Its applications range from semiconductor fabrication to aerospace testing, highlighting its significance in advancing our technological capabilities. Understanding and mastering the principles behind high vacuum not only enhances our ability to innovate but also deepens our comprehension of the physical world. As we continue to explore new frontiers, the role of high vacuum will undoubtedly remain pivotal in shaping the future of science and engineering.

在物理和工程领域，术语高真空指的是一种压力显著低于大气压力的状态。这种状态对于各种应用至关重要，包括科学研究、制造过程，甚至在太空探索领域。要真正欣赏高真空的重要性，必须理解其在现代技术中的影响和用途。首先，让我们探讨什么构成高真空。通常，当压力降到10^-3 torr（或1 mmHg）以下时，真空被认为是“高”的。在这个水平上，气体分子的数量大幅减少，从而最小化空气对实验或过程的干扰。例如，在半导体制造中，实现高真空对于防止沉积薄膜过程中的污染至关重要。任何杂质都可能危害电子设备的质量和性能。此外，高真空环境在研究实验室中至关重要，尤其是在物理学和材料科学等领域。涉及电子束的实验，例如，需要高真空以确保电子不会与空气分子碰撞，这会使它们散射并导致不准确的结果。保持高真空的能力使科学家能够进行精确测量并获得可靠数据，推动我们对宇宙的理解。除了科学研究之外，高真空技术在真空管和其他电子元件的生产中也发挥着重要作用。这些设备依赖于空气的缺失来正常工作。当产生真空时，电子流的控制更加有效，从而提高了放大器和振荡器的性能。如果没有高真空条件，这些元件的效率将受到严重影响。此外，航空航天工业在测试航天器和卫星时严重依赖高真空系统。在发射之前，这些飞行器必须在模拟外太空条件的真空室中进行严格测试。通过创造高真空，工程师可以评估这些飞行器在太空恶劣环境中的表现，确保它们在任务中的可靠性和安全性。值得注意的是，实现高真空并非没有挑战。用于创建和维持这种环境的设备，如真空泵和真空室，必须经过精心设计和维护。系统中的任何泄漏或故障都可能导致压力波动，从而可能破坏敏感的实验或制造过程。因此，工程师和科学家必须精通真空技术，以确保成功的结果。总之，高真空的概念在现代科学和技术的许多方面都是不可或缺的。它的应用范围从半导体制造到航空航天测试，突显了它在推动我们技术能力方面的重要性。理解和掌握高真空背后的原理，不仅增强了我们创新的能力，也加深了我们对物理世界的理解。随着我们继续探索新前沿，高真空的角色无疑将在塑造科学和工程的未来中保持关键地位。