osmium

简明释义

英[ˈɒzmiəm]美[ˈɑːzmiəm]

n. [化学] 锇

英英释义

单词用法

同义词

反义词

例句

1.It was just a garden variety platinum nucleus pretending to be a monopole by cleverly decaying into osmium and tantalum.

它只是一个巧妙地通过衰变成锇和钽而假装成磁单极子的普通的铂原子核。

2.Osmium has the highest density.

在金属中锇的密度很高。

3.The nature, shape, structure and distribution of osmiophilic cells in the rat thymus were studied by the osmium black method silver impregnation and histochemistry.

应用锇黑法、银浸法和酶组织化学法探讨了大鼠胸腺嗜锇性细胞的分布、形态结构和性质。

4.Methods: Ruthenium tetroxide and osmium tetroxide were compared as post fixative in the preparation of hairless epidermis for transmission electron microscopic examination.

方法：裸鼠表皮分别用四氧化钌和锇酸固定后电镜下观察裸鼠表皮角质层脂质的超微结构。

5.It's the only place where you can produce, actually, osmium.

这也是唯一可以实际产生锇的地方。

6.These clusters show different fluxional behaviour and ligands according to various substituent around the metals of osmium.

根据羰基配体取代基的不同，该类簇合物中小分子的移动种类及方式也有所不同。

7.A mineral that is a natural alloy of osmium and iridium with small inclusions of platinum, rhodium, and other metals, used in needles and wearing points.

铱锇矿一种矿石，是少量铂、铑及其他金属矿石的铱锇的自然合金，用于制造针头和耐磨尖端。

8.In one case, executives discovered a coating advertised as pure gold that masked a complex alloy, which included rare metals such as osmium, iridium, ruthenium and rhodium.

在一个案例中，业内高管发现一种号称纯金的涂层其实是一种复杂的合金，含有锇、铱、钌、铑等稀有金属。

9.The density of osmium is one of the highest among all elements, making it very useful in weight-sensitive applications.

铂的密度在所有元素中是最高的之一，这使得它在对重量敏感的应用中非常有用。

10.Due to its hardness, osmium is often used in fountain pen nibs and electrical contacts.

由于其硬度，铂常用于钢笔笔尖和电气接触点。

11.Researchers are studying the properties of osmium for potential use in catalysis.

研究人员正在研究铂的性质，以便在催化中潜在使用。

12.The alloy containing osmium is known for its exceptional wear resistance.

含有铂的合金以其卓越的耐磨性而闻名。

13.In geology, osmium can be used as a marker for certain types of mineral deposits.

在地质学中，铂可作为某些类型矿床的标记。

作文

Osmium is one of the densest naturally occurring elements on Earth, with a remarkable density of about 22.59 grams per cubic centimeter. This unique property makes osmium (铂金) an intriguing subject of study in various scientific fields. Discovered in 1803 by the British chemist Smithson Tennant, osmium (铂金) is part of the platinum group of metals, which also includes iridium, platinum, palladium, rhodium, and ruthenium. These metals are known for their resistance to corrosion and high melting points, making them valuable for industrial applications. The name osmium (铂金) is derived from the Greek word 'osme,' meaning 'smell,' due to the distinct odor of its volatile oxide. This characteristic emphasizes the importance of understanding the properties and behaviors of osmium (铂金) in both laboratory and industrial settings. In its pure form, osmium (铂金) appears as a bluish-silver metal that is extremely hard and brittle, which poses challenges in its manipulation and application. One of the most significant uses of osmium (铂金) is in the production of fountain pen nibs, electrical contacts, and other specialized equipment where durability and wear resistance are crucial. The alloying of osmium (铂金) with other metals enhances their properties, leading to improved performance in various applications. For example, osmium (铂金) alloys can be used in the manufacturing of high-performance tools and components that require exceptional hardness and resistance to deformation. Despite its valuable properties, osmium (铂金) is not widely used due to its rarity and high cost. It is primarily sourced from platinum ores, where it is found in minute quantities. The extraction and refinement of osmium (铂金) can be complex and costly, which limits its availability in the market. As a result, researchers and industries are continuously exploring more efficient methods for extracting and utilizing osmium (铂金) to maximize its potential benefits. Moreover, the study of osmium (铂金) has implications beyond its industrial applications. Scientists are investigating its potential role in various fields, including medicine and environmental science. For example, certain compounds of osmium (铂金) have shown promise in cancer treatment as they can selectively target and destroy cancer cells while minimizing damage to healthy tissues. This research highlights the importance of osmium (铂金) in advancing medical technology and improving treatment outcomes. In conclusion, osmium (铂金) is a fascinating element with unique properties that make it valuable in various applications. Its density, hardness, and resistance to corrosion contribute to its significance in industrial processes and scientific research. As we continue to explore the potential of osmium (铂金), we may uncover new ways to harness its capabilities for the benefit of society. Understanding osmium (铂金) and its applications will undoubtedly play a crucial role in the advancement of technology and medicine in the future.

铂金是地球上自然发生的元素中密度最高的之一，其密度约为每立方厘米22.59克。这一独特属性使得铂金（osmium）成为各个科学领域研究的一个引人入胜的课题。铂金于1803年由英国化学家史密森·坦南特发现，是铂族金属的一部分，铂族金属还包括铱、铂、钯、铑和钌。这些金属以其耐腐蚀性和高熔点而闻名，因此在工业应用中非常有价值。 铂金（osmium）的名称源自希腊词“osme”，意为“气味”，因为其挥发性氧化物具有独特的气味。这一特性强调了理解铂金（osmium）在实验室和工业环境中性质和行为的重要性。在纯净状态下，铂金（osmium）呈现出蓝银色的金属，极其坚硬且脆，这在其操作和应用中带来了挑战。 铂金（osmium）最重要的用途之一是在生产钢笔笔尖、电接触件和其他特殊设备时，这些设备需要耐用性和耐磨性。将铂金（osmium）与其他金属合金化可以增强其性能，从而提高各种应用中的表现。例如，铂金（osmium）合金可用于制造需要卓越硬度和抗变形能力的高性能工具和部件。 尽管具有宝贵的特性，铂金（osmium）并未被广泛使用，因为它稀有且成本高昂。它主要来自铂矿，其中含量极少。提取和精炼铂金（osmium）的过程可能复杂且成本高，这限制了其在市场上的可用性。因此，研究人员和工业界不断探索更有效的方法来提取和利用铂金（osmium），以最大限度地发挥其潜在好处。 此外，对铂金（osmium）的研究不仅限于其工业应用。科学家们正在研究其在医学和环境科学等各个领域的潜在作用。例如，某些铂金（osmium）化合物在癌症治疗中显示出希望，因为它们能够选择性地靶向和摧毁癌细胞，同时最小化对健康组织的损害。这项研究突显了铂金（osmium）在推进医疗技术和改善治疗结果方面的重要性。 总之，铂金（osmium）是一个迷人的元素，具有独特的特性，使其在各种应用中具有价值。其密度、硬度和耐腐蚀性为其在工业过程和科学研究中的重要性做出了贡献。随着我们继续探索铂金（osmium）的潜力，我们可能会发现新的方法来利用其能力，以造福社会。理解铂金（osmium）及其应用无疑将在未来科技和医学的发展中发挥关键作用。