low vacuum

简明释义

低真空

英英释义

例句

1.For this application, a low vacuum 低真空 system is more efficient than a high vacuum system.

对于这个应用，低真空 低真空系统比高真空系统更有效。

2.In semiconductor manufacturing, maintaining a low vacuum 低真空 is crucial for certain deposition processes.

在半导体制造中，维持低真空 低真空对某些沉积过程至关重要。

3.The packaging machine operates under a low vacuum 低真空 to extend the shelf life of food products.

包装机在低真空 低真空下运行，以延长食品的保质期。

4.The laboratory requires a low vacuum 低真空 environment to conduct the experiment safely.

实验室需要一个低真空 低真空的环境来安全地进行实验。

5.During the drying process, we maintained a low vacuum 低真空 to prevent the material from degrading.

在干燥过程中，我们保持了低真空 低真空以防止材料降解。

作文

In the field of physics and engineering, the term low vacuum refers to a pressure range that is lower than atmospheric pressure but not as low as what is considered a high vacuum. Typically, a low vacuum is defined as a pressure between 0.1 to 1000 millibars (mbar), or approximately 0.1 to 750 torr. This range of pressure is significant in various industrial applications and scientific research, where maintaining specific conditions is crucial for the success of experiments or manufacturing processes.One of the primary uses of low vacuum systems is in the production of electronic components. In semiconductor manufacturing, for instance, a low vacuum environment is necessary during certain deposition processes, such as chemical vapor deposition (CVD) and physical vapor deposition (PVD). These processes require controlled atmospheres to ensure that the materials being deposited onto substrates do so uniformly and without contamination. The low vacuum helps to reduce the presence of unwanted particles in the air that could interfere with the delicate processes involved in creating microchips and other electronic devices.Moreover, the food industry also benefits from low vacuum technology. Vacuum packaging is a widely used method for extending the shelf life of perishable products. By using low vacuum techniques, manufacturers can remove a significant amount of air from packaging, which slows down the growth of bacteria and mold. This process not only preserves the quality of the food but also enhances its safety for consumption.In laboratory settings, researchers often utilize low vacuum environments when conducting experiments that require precise control over pressure and gas composition. For example, studies involving gas reactions or the behavior of materials under different pressures may need a low vacuum setup to achieve accurate results. The ability to manipulate the vacuum level allows scientists to explore various phenomena and gain insights into material properties and chemical reactions.Another important application of low vacuum is in the field of vacuum distillation. This process is used to separate mixtures based on differences in boiling points at reduced pressure. By applying a low vacuum, substances can be distilled at lower temperatures, which is essential for heat-sensitive materials that might decompose at higher temperatures. This technique is particularly valuable in the petrochemical industry, where crude oil is refined into various products, including gasoline and diesel fuel.Despite its advantages, working with low vacuum systems does come with challenges. Equipment must be carefully designed and maintained to ensure that leaks do not occur, as even small amounts of air can significantly affect the pressure and the outcomes of processes. Furthermore, operators must be trained to handle vacuum systems safely, as improper use can lead to accidents or equipment failure.In conclusion, the concept of low vacuum plays a vital role in many industries, from electronics to food preservation and scientific research. Understanding how to effectively utilize low vacuum technologies can lead to advancements in various fields, enhancing product quality and enabling groundbreaking discoveries. As technology continues to evolve, the importance of mastering low vacuum systems will only grow, highlighting the need for ongoing education and innovation in this area.

在物理和工程领域，术语低真空指的是低于大气压力但不如高真空的压力范围。通常，低真空被定义为0.1到1000毫巴（mbar）之间的压力，或大约0.1到750托。这种压力范围在各种工业应用和科学研究中具有重要意义，因为维持特定条件对实验或制造过程的成功至关重要。低真空系统的主要用途之一是在电子元件的生产中。例如，在半导体制造中，某些沉积过程中需要低真空环境。这些过程需要受控气氛，以确保沉积在基板上的材料均匀且无污染。低真空有助于减少空气中不必要颗粒的存在，这些颗粒可能干扰微芯片和其他电子设备的精密制造过程。此外，食品行业也受益于低真空技术。真空包装是一种广泛使用的方法，用于延长易腐产品的保质期。通过使用低真空技术，制造商可以从包装中去除大量空气，从而减缓细菌和霉菌的生长。这一过程不仅能保持食品的质量，还能提高其安全性。在实验室环境中，研究人员经常在进行需要精确控制压力和气体成分的实验时利用低真空环境。例如，涉及气体反应或不同压力下材料行为的研究可能需要低真空设置以获得准确结果。操控真空水平的能力使科学家能够探索各种现象，并深入了解材料属性和化学反应。低真空的另一个重要应用是在真空蒸馏领域。这一过程用于根据沸点的差异在降低压力下分离混合物。通过施加低真空，物质可以在较低温度下蒸馏，这对热敏感材料非常重要，因为这些材料在高温下可能会分解。这一技术在石油化工行业特别有价值，原油被精炼成各种产品，包括汽油和柴油。尽管有其优点，使用低真空系统也面临挑战。设备必须经过精心设计和维护，以确保不会发生泄漏，因为即使少量空气也会显著影响压力和过程结果。此外，操作人员必须接受培训，以安全地处理真空系统，因为不当使用可能导致事故或设备故障。总之，低真空的概念在许多行业中发挥着至关重要的作用，从电子产品到食品保存以及科学研究。有效利用低真空技术可以推动各个领域的进步，提高产品质量并实现突破性的发现。随着技术的不断发展，掌握低真空系统的重要性将只增不减，突显出在这一领域持续教育和创新的必要性。