electromagnets

简明释义

英[ˌɪlɛktrəʊˈmæɡnɛts]美[ˌɛlɛkˈtrɑːˌmæɡnɛts]

[电] 电磁铁

英英释义

单词用法

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例句

1.This paper presents a new suspension system with hybrid electromagnets made of high temperature superconductor and normal conductor coil.

经分析比较，提出了一种用高温超导线圈和常导线圈构成的混合式电磁吸力型悬浮系统方案。

2.A suspension system with hybrid electromagnets made of permanent - and electromagnets consumes little power, and can realize larger air gap.

永久磁铁和常导线圈构成的混合式悬浮系统，悬浮能耗小，可实现大气隙悬浮。

3.Electromagnets find frequent application in research, industry, medical, and consumer products.

电磁铁在研究，工业，医学，和消耗品上有广泛的应用。

4.Applications of cryogenics include the storage and transport of liquefied gases, food preservation, cryosurgery, rocket fuels, and superconducting electromagnets.

低温技术的应用包括液化天然气的储存和运输、食物保存、低温医学、火箭燃料和超导电磁体。

5.You can also play with electromagnets, generators and transformers!

你还可以用电磁石，发电机和变压器！

6.He attached one of his electromagnets to a wheel, and fixed another to a stationary frame.

之一，他重视他的电磁铁，以一个车轮，并固定另一固定框架。

7.Starting this month -- and continuing for four weeks -- the particle accelerator will be speeding lead ions around its superconducting electromagnets.

从这个月开始——并一直持续四个星期——粒子加速器都要对绕着它的超导电磁铁旋转的铅离子进行加速。

8.The electromagnets would require only an initial power input to start the current in their coils.

当直流电流过线圈，就会在线圈的周围产生磁场。

9.The technique involves the use of electromagnets positioned strategically on the head to create a magnetic field that sends tiny electric currents into the brain.

这项技术包括战略性放置在头上电磁石的应用，它产生一个发射微小的电流进入大脑的电磁场。

10.The factory uses electromagnets to lift heavy metal objects easily.

工厂使用电磁铁轻松提升重金属物体。

11.In MRI machines, electromagnets create strong magnetic fields for imaging.

在MRI机器中，电磁铁产生强大的磁场用于成像。

12.Electric trains often rely on electromagnets for propulsion.

电动列车通常依赖于电磁铁进行推进。

13.The door locks use electromagnets to secure the entrance.

门锁使用电磁铁来确保入口的安全。

14.Robotic arms are equipped with electromagnets to handle metal parts.

机器人手臂配备有电磁铁以处理金属部件。

作文

Electromagnets are a fascinating and essential component of modern technology. They are created by passing an electric current through a coil of wire, which generates a magnetic field. This phenomenon is based on the principles of electromagnetism, discovered in the early 19th century. The ability to control the strength and direction of the magnetic field makes electromagnets (电磁铁) incredibly useful in various applications. From industrial machinery to everyday devices, electromagnets (电磁铁) play a crucial role in our lives. One of the most common uses of electromagnets (电磁铁) is in electric motors. These motors convert electrical energy into mechanical energy, allowing machines to perform work. The interaction between the magnetic field generated by the electromagnets (电磁铁) and permanent magnets creates motion, enabling everything from fans to electric cars to function efficiently. Without electromagnets (电磁铁), our reliance on electric-powered devices would be significantly hindered. In addition to motors, electromagnets (电磁铁) are also found in transformers, which are essential for transmitting electricity over long distances. Transformers use electromagnets (电磁铁) to step up or step down voltage levels, ensuring that power can be delivered safely and efficiently to homes and businesses. The ability to manipulate voltage levels is vital for the stability of our electrical grid, making electromagnets (电磁铁) indispensable in the energy sector. Another interesting application of electromagnets (电磁铁) is in magnetic resonance imaging (MRI) machines. These medical devices utilize powerful electromagnets (电磁铁) to create detailed images of the inside of the human body. By aligning the protons in our bodies with the magnetic field and then using radio waves, MRI machines can produce high-resolution images that help doctors diagnose various conditions. The precision and effectiveness of MRIs highlight the importance of electromagnets (电磁铁) in the field of medicine. The versatility of electromagnets (电磁铁) extends beyond industrial and medical applications. They are also used in everyday items such as doorbells and magnetic locks. When you press a doorbell, an electric current flows through a coil, activating the electromagnets (电磁铁) inside, which then strikes a chime to produce sound. Similarly, magnetic locks rely on electromagnets (电磁铁) to secure doors, providing safety and convenience in both residential and commercial settings. Despite their numerous advantages, electromagnets (电磁铁) also have some limitations. For instance, they require a continuous supply of electricity to maintain their magnetic field. If the power is cut off, the magnetic field disappears, which can be a disadvantage in certain situations. Additionally, electromagnets (电磁铁) can generate heat when in use, which may require cooling mechanisms in high-power applications to prevent overheating. In conclusion, electromagnets (电磁铁) are integral to many aspects of modern life, from transportation and energy to healthcare and security. Their ability to create controllable magnetic fields has revolutionized technology and continues to shape our world. As we advance further into the future, the development and innovation surrounding electromagnets (电磁铁) will likely lead to even more groundbreaking applications, making them a key area of study in both science and engineering.