paramagnetic

简明释义

英[ˌpærəmæɡˈnetɪk]美[ˌpærəmæɡˈnetɪk]

adj. 顺磁性的；常磁性的

n. 顺磁物质；顺磁体

英英释义

单词用法

同义词

反义词

例句

1.At room temperature all the metals are paramagnetic.

在室温时，所有的金属都是顺磁性的。

2.Liquid oxygen is paramagnetic.

液氧具有顺磁性。

3.The invention discloses an amphipathic super-paramagnetic and magnetically resonant contrast agent and a method for preparing the contrast agent.

本发明公开了一种两亲超顺性磁共振造影剂，以及这种造影剂的制备方法。

4.The present invention relates to one kind of tree-shaped macromolecular paramagnetic metal complex and its synthesis process and use.

本发明涉及一类树型大分子顺磁性金属配合物及合成方法和用途。

5.The free radicals in kerogen of sedimentary organic matter can be easily determined by using the electron paramagnetic resonance(EPR) technique.

利用电子顺磁共振（EPR）技术可以简便地测定沉积有机质中干酪根的自由基。

6.Using the paramagnetic salt restricted to the Curie law as the working substance, a general model of magnetic Brayton refrigeration cycle is established.

基于统计力学的性质推导出了顺磁系统的热力学关系，并构建了以满足居里定律的顺磁材料为工作物质的一般磁布雷顿制冷循环模型。

7.It is sometimes difficult to draw the line separating ferromagnetic from paramagnetic substances.

严格区别铁磁性与顺磁性物质有时是很困难的。

8.A new method for measuring waveguide wavelength using microwave paramagnetic resonance instrument was studied.

探讨了一种利用微波顺磁共振仪测量波导波长的方法。

9.Materials like aluminum are considered paramagnetic 顺磁性的 because they have unpaired electrons.

像铝这样的材料被认为是paramagnetic 顺磁性的，因为它们有未配对的电子。

10.In a magnetic field, paramagnetic 顺磁性的 substances tend to align their magnetic moments with the field.

在磁场中，paramagnetic 顺磁性的物质倾向于将其磁矩与磁场对齐。

11.The paramagnetic 顺磁性的 properties of certain metal ions make them useful in MRI technology.

某些金属离子的paramagnetic 顺磁性的特性使它们在MRI技术中非常有用。

12.Oxygen is a well-known paramagnetic 顺磁性的 gas due to its molecular structure.

氧气因其分子结构而被广泛认为是paramagnetic 顺磁性的气体。

13.When cooled to very low temperatures, some paramagnetic 顺磁性的 materials can exhibit unusual magnetic behavior.

当冷却到非常低的温度时，一些paramagnetic 顺磁性的材料可以表现出不寻常的磁性行为。

作文

In the realm of physics, particularly in the study of magnetism, the term paramagnetic refers to materials that are attracted to magnetic fields. Unlike ferromagnetic materials, which can retain their magnetization after the external magnetic field is removed, paramagnetic substances exhibit a much weaker form of magnetism. This property arises from the presence of unpaired electrons in the atomic structure of the material. When exposed to a magnetic field, these unpaired electrons align themselves with the field, resulting in a temporary magnetic effect. However, once the external field is removed, the alignment disappears, and the material returns to its non-magnetic state. To better understand the significance of paramagnetic materials, let’s consider some practical applications. One notable example is in the field of medical imaging, specifically Magnetic Resonance Imaging (MRI). In MRI scans, paramagnetic contrast agents are used to enhance the visibility of certain tissues in the body. These agents contain elements like gadolinium, which have unpaired electrons that respond to magnetic fields, thus improving the quality of the images obtained during the scan. Moreover, paramagnetic materials also play a crucial role in various technological advancements. For instance, they are commonly used in data storage devices. The ability of paramagnetic materials to switch between magnetic states allows for the encoding of data, making them essential components in hard drives and other storage technologies. In addition to their applications, paramagnetic materials also provide valuable insights into the behavior of electrons in solids. The study of their magnetic properties helps physicists understand fundamental concepts such as electron spin and the interaction between electrons and magnetic fields. This knowledge is not only critical for theoretical physics but also for developing new materials with tailored magnetic properties. It is also interesting to note that paramagnetic materials can be found in nature. Many biological molecules, such as hemoglobin, exhibit paramagnetic behavior due to the presence of unpaired electrons. This property is vital for the functioning of hemoglobin in transporting oxygen throughout the body, showcasing the interconnectedness of chemistry and biology. In conclusion, the concept of paramagnetic materials extends far beyond mere definitions in textbooks. Their unique properties and behaviors open doors to numerous applications in medicine, technology, and scientific research. As we continue to explore the fascinating world of magnetism, understanding paramagnetic materials will undoubtedly lead to further innovations and discoveries that can benefit society at large. Therefore, whether in a clinical setting or a technological environment, the role of paramagnetic substances remains indispensable, demonstrating the intricate relationship between physical properties and practical uses in our everyday lives.

在物理学的领域，特别是在磁性研究中，术语paramagnetic指的是被磁场吸引的材料。与能够在外部磁场移除后保留其磁化状态的铁磁材料不同，paramagnetic物质表现出一种较弱的磁性。这一特性源于材料原子结构中存在未配对电子。当暴露于磁场时，这些未配对电子会与磁场对齐，从而产生暂时的磁效应。然而，一旦外部磁场被移除，这种对齐就会消失，材料将恢复到非磁性状态。 为了更好地理解paramagnetic材料的重要性，让我们考虑一些实际应用。其中一个显著的例子是医学成像领域，特别是磁共振成像（MRI）。在MRI扫描中，paramagnetic对比剂用于增强身体某些组织的可见性。这些对比剂含有如钆这样的元素，这些元素具有未配对电子，可以响应磁场，从而提高扫描过程中获得的图像质量。 此外，paramagnetic材料在各种技术进步中也发挥着至关重要的作用。例如，它们通常用于数据存储设备。paramagnetic材料在磁态之间切换的能力使得数据编码成为可能，使它们成为硬盘和其他存储技术的基本组成部分。 除了它们的应用，paramagnetic材料还提供了对固体中电子行为的宝贵洞察。研究它们的磁性特性帮助物理学家理解电子自旋和电子与磁场之间的相互作用等基本概念。这一知识不仅对理论物理至关重要，而且对开发具有定制磁性特性的材料也是如此。 有趣的是，paramagnetic材料在自然界中也可以找到。许多生物分子，如血红蛋白，由于存在未配对电子而表现出paramagnetic行为。这一特性对于血红蛋白在全身运输氧气的功能至关重要，展示了化学和生物学之间的相互联系。 总之，paramagnetic材料的概念远不止教科书中的简单定义。它们独特的属性和行为为医学、技术和科学研究中的许多应用打开了大门。随着我们继续探索磁性世界的迷人之处，理解paramagnetic材料无疑将导致进一步的创新和发现，从而造福整个社会。因此，无论是在临床环境还是技术环境中，paramagnetic物质的作用始终是不可或缺的，展示了物理特性与我们日常生活中实际用途之间的复杂关系。