demagnetise

简明释义

英[ˌdiːˈmæɡnətaɪz]美[ˌdiːˈmæɡnətaɪz]

v. 使……退磁，消磁

第 三 人 称 单 数 d e m a g n e t i s e s

现 在 分 词 d e m a g n e t i s i n g

过 去 式 d e m a g n e t i s e d

过 去 分 词 d e m a g n e t i s e d

英英释义

单词用法

同义词

反义词

例句

1.To reset the hard drive, we need to demagnetise it first.

要重置硬盘，我们需要先去磁。

2.Some devices are designed to automatically demagnetise after use.

一些设备设计为在使用后自动去磁。

3.If you want to erase the data on this card, you must demagnetise it.

如果你想删除这张卡上的数据，必须去磁。

4.Before storing the magnetic tools, ensure to demagnetise them.

在存放磁性工具之前，确保要去磁。

5.The technician will demagnetise the old tapes before recycling them.

技术人员会在回收旧磁带之前去磁。

作文

In the realm of physics and engineering, magnetism plays a crucial role in various applications. However, there are instances when we need to reverse this magnetism, a process known as demagnetise. To demagnetise means to eliminate or reduce the magnetic properties of a material. This process is essential in several fields, including electronics, data storage, and even in everyday household items. Understanding how and why we demagnetise certain objects can provide valuable insights into the principles of magnetism and its practical implications.One common example of demagnetise in action is in the realm of electronics. Many electronic devices, such as hard drives, rely on magnetic fields to store data. Over time, these magnetic fields can become unstable, leading to data corruption or loss. By employing a demagnetise procedure, technicians can restore the integrity of the stored information. This is often done using specialized equipment that generates an alternating magnetic field, effectively neutralizing the existing magnetic charges within the device.Another area where demagnetise is significant is in the maintenance of tools and machinery. Certain tools, especially those made from ferromagnetic materials, can become magnetized over time due to exposure to strong magnetic fields. This unwanted magnetism can make it difficult to use these tools effectively, as they may attract metal shavings or other debris. In such cases, it is beneficial to demagnetise the tools, ensuring they function properly and safely.Moreover, demagnetise processes are also applied in the healthcare sector. For instance, medical imaging devices, such as MRI machines, utilize powerful magnets to create detailed images of the human body. However, any stray magnetic fields can interfere with the imaging process. Therefore, it is vital to demagnetise the surrounding environment before conducting an MRI scan. This ensures that the results are accurate and reliable, ultimately aiding in effective diagnosis and treatment.In everyday life, we may encounter the need to demagnetise objects without even realizing it. For example, credit cards and magnetic strip cards can become demagnetized if exposed to strong magnetic fields, such as those found in speakers or some electronic devices. When this happens, the information stored on these cards can be lost, leading to inconvenience for users. Thus, understanding the concept of demagnetise can help individuals take better care of their belongings and avoid potential issues.In conclusion, the term demagnetise encompasses a vital process in various fields, from electronics to healthcare. By eliminating unwanted magnetic properties, we can ensure the proper functioning of devices, tools, and even personal items. As technology continues to evolve, the significance of demagnetise will likely grow, making it an essential concept for both professionals and everyday users to understand. By grasping the principles behind demagnetise, we can appreciate the delicate balance of magnetism in our world and its impact on our daily lives.

在物理和工程领域，磁性在各种应用中发挥着至关重要的作用。然而，有时我们需要逆转这种磁性，这一过程被称为去磁化。去磁化是指消除或减少材料的磁性。这一过程在多个领域中至关重要，包括电子学、数据存储，甚至日常家居用品。理解我们为何以及如何去磁化某些物体，可以为我们提供关于磁性原理及其实际应用的宝贵见解。一个常见的去磁化实例是在电子领域。许多电子设备，如硬盘，依赖于磁场来存储数据。随着时间的推移，这些磁场可能会变得不稳定，导致数据损坏或丢失。通过采用去磁化程序，技术人员可以恢复存储信息的完整性。这通常使用专门的设备，通过产生交变磁场，有效地中和设备内现有的磁电荷。另一个去磁化重要领域是工具和机械的维护。某些工具，尤其是由铁磁材料制成的工具，可能由于暴露于强磁场而随着时间的推移而被磁化。这种不必要的磁性可能使这些工具难以有效使用，因为它们可能会吸附金属屑或其他杂物。在这种情况下，去磁化工具是有益的，以确保它们正常、安全地工作。此外，去磁化过程也应用于医疗保健领域。例如，医学成像设备，如MRI机器，利用强大的磁铁创建人体的详细图像。然而，任何杂散的磁场都可能干扰成像过程。因此，在进行MRI扫描之前，必须对周围环境进行去磁化。这确保结果准确可靠，最终有助于有效的诊断和治疗。在日常生活中，我们可能会遇到需要去磁化物体的情况，而我们甚至没有意识到。例如，信用卡和磁条卡如果暴露在强磁场中，如扬声器或某些电子设备附近，可能会被去磁。当这种情况发生时，这些卡上存储的信息可能会丢失，给用户带来不便。因此，理解去磁化的概念可以帮助个人更好地照顾他们的物品，避免潜在的问题。总之，去磁化这一术语涵盖了各个领域的重要过程，从电子学到医疗保健。通过消除不必要的磁性，我们可以确保设备、工具甚至个人物品的正常运作。随着技术的不断发展，去磁化的重要性可能会进一步增加，使其成为专业人士和普通用户都需要理解的基本概念。通过掌握去磁化背后的原理，我们可以欣赏到我们世界中磁性的微妙平衡及其对我们日常生活的影响。