praseodymium

简明释义

英[ˌpreɪziəʊˈdɪmiəm]美[ˌpreɪzioʊˈdɪmiəm]

n. [化学] 镨（稀土金属元素）

英英释义

单词用法

同义词

反义词

例句

1.The synthesis, refinement and characterization of the phthalocyanine of europium, praseodymium and neodymium were intensively studied.

本文研究了铕酞菁、钕酞菁利镨酞菁配合物的合成、提纯与表征的方法。

2.The influence of Lanthanum, Cerium, Yttrium, Praseodymium and Neodymium on weld hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron was studied.

研究了纯镍铸铁焊条冷焊时，稀土金属镧、铈、镨、钇及钕对焊缝热裂纹敏感性的影响规律，并分析了铈对焊接接头力学性能和加工性能的影响。

3.In citric acid praseodymium could be quantitatively deposited at mercury cathode, while the deposition percentage of neodymium is 97%.

镨在柠檬酸溶液体系中可定量地进入汞相，钕的电沉率亦达97%左右。

4.The results show that aluminum of 60% in praseodymium-neodymium...

结果表明，碳酸镨钕中60%的铝可以去除。

5.The mechanism of formation of yellow praseodymium zircon pigments has been investigated by using platinum wire-marker technique.

用铂丝标记技术研究了镨锆黄颜料的形成机理。

6.Methods Effects of yttrium chloride and praseodymium chloride on human lymphocytes cultured in vitro were studied by micronucleus test.

用微核试验法研究了氯化钇和氯化镨对体外培养的人淋巴细胞微核率的影响。

7.Battery producers for electrical cars using praseodymium neodymium and lanthanum also felt the pain of rising costs.

电动汽车的电池制造商使用的元素为镨，铷，镧，其也对增加的成本痛苦不已。

8.The influence of Lanthanum, Cerium, Yttrium, Praseodymium and Neodymium on weld hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron was studied.

研究了纯镍铸铁焊条冷焊时，稀土金属镧、铈、镨、钇及钕对焊缝热裂纹敏感性的影响规律，并分析了铈对焊接接头力学性能和加工性能的影响。

9.A metallic mixture, once considered an element, composed of neodymium and praseodymium.

钕镨合金一种金属混合金属，曾被当作一个元素，是由钕和镨组成的。

10.In the production of certain alloys, praseodymium is an essential component.

在某些合金的生产中，铥是一个重要成分。

11.Scientists are exploring the properties of praseodymium for use in magnets.

科学家们正在探索铥的特性，以便用于磁铁。

12.Researchers have discovered new applications for praseodymium in the field of electronics.

研究人员在电子领域发现了铥的新应用。

13.The color of glass can be altered by adding praseodymium oxide.

通过添加铥氧化物，可以改变玻璃的颜色。

14.The compound contains a significant amount of praseodymium.

该化合物含有大量的铥。

作文

Praseodymium is a chemical element with the symbol Pr and atomic number 59. It belongs to the group of lanthanides, which are often referred to as rare earth elements. The name praseodymium comes from the Greek words 'prasios' meaning green and 'didymos' meaning twin, reflecting its unique characteristics. This element was first isolated in 1885 by the German chemist Carl Auer von Welsbach. Praseodymium is a silvery-white metal that is soft and malleable, and it is known for its ability to form compounds with a variety of colors, which makes it useful in various applications.One of the most significant uses of praseodymium is in the production of strong permanent magnets. These magnets are used in a wide range of applications, including electric motors, generators, and hard disk drives. The demand for such magnets has increased significantly with the rise of renewable energy technologies and electric vehicles, where efficient power conversion is essential. Furthermore, praseodymium is also utilized in the manufacturing of glass and ceramics, where it helps to impart a yellow color to glass and is used in the production of certain types of glazes.Another interesting application of praseodymium is in the field of lighting. It is used in some types of high-intensity lighting systems, which are essential in various industrial processes and entertainment venues. The unique properties of praseodymium allow it to produce a bright and stable light, making it an ideal choice for these applications.In addition to its industrial uses, praseodymium has also found its way into the world of art. Artists have begun to use praseodymium compounds to create vibrant and lasting colors in their works. The rich hues created by praseodymium pigments can enhance the visual appeal of paintings and other forms of artwork, showcasing the versatility of this element beyond just its industrial applications.Despite its many uses, praseodymium is not without its challenges. As a rare earth element, it is not abundantly available, and the extraction process can be environmentally damaging. This has led to increased interest in recycling existing materials that contain praseodymium, as well as the development of more sustainable mining practices. Scientists and engineers are continuously exploring ways to minimize the environmental impact of extracting and using praseodymium while still meeting the growing demand for this valuable element.In conclusion, praseodymium is a fascinating element with a wide range of applications in various fields, from technology to art. Its unique properties make it indispensable in many modern applications, while its rarity poses challenges that require innovative solutions. Understanding the importance of praseodymium not only highlights its significance in our daily lives but also encourages us to think about the sustainability of the resources we depend on. As we move forward, the role of praseodymium will likely continue to evolve, opening new avenues for research and application in the years to come.

铈是一种化学元素，符号为Pr，原子序数为59。它属于镧系元素组，这些元素通常被称为稀土元素。铈这个名字源于希腊语中的“prasios”，意为绿色，以及“didymos”，意为双重，反映了其独特的特性。该元素于1885年由德国化学家卡尔·奥尔·冯·维尔斯巴赫首次分离。铈是一种银白色金属，柔软且可锻造，以其能够与各种颜色形成化合物而闻名，这使其在各种应用中非常有用。铈最重要的用途之一是生产强力永久磁铁。这些磁铁广泛应用于电动机、发电机和硬盘驱动器等多种应用中。随着可再生能源技术和电动车辆的兴起，对这种磁铁的需求显著增加，因为高效的功率转换至关重要。此外，铈还用于玻璃和陶瓷的制造，帮助玻璃呈现黄色，并用于某些类型釉料的生产。铈的另一个有趣的应用是在照明领域。它被用于某些类型的高强度照明系统，这在各种工业过程和娱乐场所中至关重要。铈的独特属性使其能够产生明亮而稳定的光，使其成为这些应用的理想选择。除了工业用途，铈还进入了艺术界。艺术家们开始使用铈化合物来创作生动持久的颜色。铈颜料所创造的丰富色调可以增强画作和其他艺术形式的视觉吸引力，展示了该元素在工业应用之外的多样性。尽管有许多用途，铈也面临挑战。作为一种稀土元素，它并不丰富可得，提取过程可能对环境造成损害。这导致人们越来越关注回收现有含有铈的材料，以及开发更可持续的采矿实践。科学家和工程师们不断探索减少提取和使用铈对环境影响的方法，同时满足对这一宝贵元素日益增长的需求。总之，铈是一种迷人的元素，在技术到艺术等多个领域具有广泛的应用。其独特的性质使其在许多现代应用中不可或缺，而其稀有性则带来了需要创新解决方案的挑战。理解铈的重要性不仅突显了它在我们日常生活中的意义，也鼓励我们思考我们所依赖资源的可持续性。随着我们向前发展，铈的角色可能会继续演变，为未来的研究和应用开辟新的途径。