temporary magnet

简明释义

软铁

英英释义

例句

1.The temporary magnet 临时磁铁 we placed on the whiteboard helped keep our notes in place.

我们放在白板上的temporary magnet 临时磁铁 帮助我们保持笔记的位置。

2.The temporary magnet 临时磁铁 in the toy car allows it to stick to the refrigerator when parked.

玩具车中的temporary magnet 临时磁铁 使其在停放时能够粘附在冰箱上。

3.During the science experiment, we used a temporary magnet 临时磁铁 to demonstrate magnetic fields.

在科学实验中，我们使用了一个temporary magnet 临时磁铁 来演示磁场。

4.A fridge door can be closed securely using a temporary magnet 临时磁铁 to hold it shut while unloading groceries.

冰箱门可以使用一个temporary magnet 临时磁铁 安全地关闭，以便在卸载杂货时保持关闭。

5.He used a temporary magnet 临时磁铁 to attach his tools to the metal surface while working.

他在工作时使用了一个temporary magnet 临时磁铁 将工具固定在金属表面上。

作文

The concept of a temporary magnet is fascinating and plays a significant role in our understanding of magnetism. Unlike permanent magnets, which maintain a constant magnetic field, temporary magnets are materials that can be magnetized in the presence of an external magnetic field but lose their magnetism when the field is removed. This property makes them particularly useful in various applications, from everyday household items to complex industrial machinery.One common example of a temporary magnet is a paperclip. When placed near a strong magnet, the paperclip becomes magnetized and can pick up small metal objects. However, once the paperclip is removed from the magnetic field, it quickly loses its magnetism and returns to its original state. This behavior is due to the alignment of the magnetic domains within the material, which can be temporarily altered by an external magnetic influence.In technology, temporary magnets are essential components in devices such as electric motors and transformers. In these applications, the ability to switch magnetism on and off is crucial for efficient operation. For instance, in an electric motor, the rotor can become a temporary magnet when current flows through the coils, allowing it to interact with the stator's magnetic field and produce motion. Once the current stops, the rotor ceases to be a magnet, stopping the motion.Moreover, temporary magnets are also used in magnetic storage devices, such as hard drives. In these devices, data is stored by changing the magnetic properties of certain regions on a disk. The regions can be magnetized and demagnetized rapidly, allowing for quick access to information. This process relies heavily on the principles of temporary magnets, showcasing their importance in modern technology.The study of temporary magnets extends beyond practical applications; it also encompasses scientific research. Physicists explore how different materials respond to magnetic fields, leading to the discovery of new substances that can act as effective temporary magnets. This research not only enhances our understanding of magnetism but also paves the way for innovations in materials science.In conclusion, temporary magnets are vital to both everyday life and advanced technological applications. Their ability to be magnetized and demagnetized makes them indispensable in various fields, from household items to complex industrial systems. Understanding how temporary magnets work allows us to appreciate the intricacies of magnetism and its applications in our world. As we continue to explore and innovate, the significance of temporary magnets will undoubtedly grow, leading to new discoveries and advancements in technology.

暂时磁铁的概念令人着迷，并在我们对磁性理解中扮演着重要角色。与保持恒定磁场的永久磁铁不同，暂时磁铁是指在外部磁场存在时可以被磁化，但在移除磁场后会失去其磁性的材料。这一特性使它们在从日常家居用品到复杂工业机械的各种应用中变得特别有用。一个常见的暂时磁铁例子是回形针。当靠近强磁铁时，回形针会被磁化并能够吸起小金属物体。然而，一旦将回形针从磁场中移开，它会迅速失去其磁性，恢复到原始状态。这种行为是由于材料内部磁域的排列，可以通过外部磁场的影响暂时改变。在技术领域，暂时磁铁是电动机和变压器等设备的重要组成部分。在这些应用中，开关磁性能力对于高效运行至关重要。例如，在电动机中，当电流通过线圈时，转子可以成为暂时磁铁，使其与定子的磁场相互作用并产生运动。一旦电流停止，转子就不再是磁铁，从而停止运动。此外，暂时磁铁还用于磁存储设备，如硬盘。在这些设备中，数据通过改变磁盘上某些区域的磁性来存储。这些区域可以快速磁化和去磁，从而实现快速访问信息。这个过程在很大程度上依赖于暂时磁铁的原理，展示了它们在现代技术中的重要性。对暂时磁铁的研究不仅限于实际应用；它还涵盖科学研究。物理学家探索不同材料如何响应磁场，从而发现新的物质可以作为有效的暂时磁铁。这一研究不仅增强了我们对磁性的理解，也为材料科学的创新铺平了道路。总之，暂时磁铁在日常生活和先进技术应用中至关重要。它们被磁化和去磁的能力使它们在各个领域不可或缺，从家居用品到复杂的工业系统。理解暂时磁铁的工作原理使我们能够欣赏磁性及其在我们世界中的应用的复杂性。随着我们继续探索和创新，暂时磁铁的重要性无疑会增长，带来新的发现和技术进步。