actinides

简明释义

英[ˈæktɪnaɪdz]美[ˈæktɪnaɪdz]

n. [化学] 锕类

英英释义

单词用法

同义词

反义词

例句

1.But roughly 5 percent of reactor waste is highly radioactive fission products, including plutonium and other actinides.

但是约有百分之五的反应堆废料是高放射性裂变产物，包括钚和其他锕系元素。

2.Actinides are synthesized very quickly in such environments as supernova explosions.

锕合成很快，在这种环境下，因为超新星爆炸。

3.The designed formulae for solidification of actinides were given, and the properties of the waste form, like physical properties, durability properties and irradiation properties, were evaluated.

研究了富钙钛锆石型和富烧绿石型两种人造岩石固化体包容锕系核素的配方设计和固化产品的鉴定评价，包括物理性能、抗浸出性能和耐辐照性能。

4.The extraction behaviors of actinides and the main fission products by the above compounds were studied.

较为系统研究了该化合物作为锕系元素萃取剂对锕系元素和主要裂片元素的萃取性能。

5.Since the unstable nuclei exist between actinides, including thorium and stable nuclei like lead and bismuth, explosive events such as supernovae are required to produce actinides.

自不稳定核之间存在着锕系元素，包括钍和稳定核像灌了铅，铋，爆炸性事件，如超需出示锕。

6.Actinides are not only the main fuels of nuclear energy but also the main ingredients of the nuclear wastes.

锕系元素是核能源的主要燃料，也是核废料中的主要成分。

7.The designed formulae for solidification of actinides were given, and the properties of the waste form, like physical properties, durability properties and irradiation properties, were evaluated.

研究了富钙钛锆石型和富烧绿石型两种人造岩石固化体包容锕系核素的配方设计和固化产品的鉴定评价，包括物理性能、抗浸出性能和耐辐照性能。

8.Actinides are synthesized very quickly in such environments as supernova explosions.

锕合很快，种环境，超新星爆炸。

9.Rare earths, also called lanthanides, are chemically similar to actinides (89 through 104).

稀土元素也称镧系元素，化学性质与锕族元素(89到104)相似。

10.Research on actinides 锕系元素 can lead to advancements in cancer treatment.

对actinides 锕系元素的研究可能会推动癌症治疗的进展。

11.Plutonium is one of the most well-known actinides 锕系元素 used in atomic bombs.

钚是最著名的actinides 锕系元素之一，用于原子弹中。

12.The radioactive properties of actinides 锕系元素 make them a topic of interest in environmental science.

由于其放射性特性，actinides 锕系元素成为环境科学中的一个研究主题。

13.The study of actinides 锕系元素 is crucial for understanding nuclear chemistry.

对actinides 锕系元素的研究对于理解核化学至关重要。

14.Many actinides 锕系元素 are used in the production of nuclear fuel.

许多actinides 锕系元素被用于核燃料的生产。

作文

The study of the periodic table reveals a fascinating group of elements known as the actinides. These elements, ranging from actinium to lawrencium, are found in the bottom row of the f-block and are characterized by their unique properties and behaviors. The actinides (锕系元素) are primarily known for their radioactivity and their ability to undergo nuclear reactions, which makes them essential in various fields such as nuclear energy and medicine.One of the most notable features of the actinides is their atomic structure. They have large atomic numbers, with actinium having an atomic number of 89 and lawrencium reaching up to 103. This high atomic number contributes to their instability and radioactivity, leading to their classification as heavy metals. The radioactivity of the actinides (锕系元素) results from the decay of their nuclei, which can emit alpha particles, beta particles, or gamma rays. This property has significant implications for both their use and handling in various applications.In the realm of nuclear energy, actinides play a crucial role. Uranium and plutonium, two of the most well-known actinides (锕系元素), are the primary fuels used in nuclear reactors. Their ability to undergo fission—a process where the nucleus splits into smaller parts—releases a tremendous amount of energy, which can be harnessed for electricity generation. However, the management of nuclear waste, which often contains actinides, poses significant challenges due to their long half-lives and potential environmental impact.Furthermore, the medical field has also benefited from the properties of actinides. Radioisotopes derived from these elements are used in cancer treatment and diagnostic imaging. For instance, radium-223 is used in targeted alpha therapy for prostate cancer, demonstrating the therapeutic potential of actinides (锕系元素) in modern medicine. The ability to harness the radioactive properties of these elements for beneficial purposes highlights the dual nature of their existence—both dangerous and useful.Despite their importance, working with actinides requires stringent safety measures. Due to their toxicity and radioactivity, researchers and workers must adhere to strict protocols to minimize exposure and prevent contamination. This includes using specialized equipment, monitoring radiation levels, and implementing proper disposal methods for radioactive waste. As we continue to explore the potential of actinides (锕系元素), it is vital that we balance their benefits with the necessary precautions to protect human health and the environment.In conclusion, the actinides represent a remarkable group of elements with distinctive characteristics that have far-reaching implications in science and technology. Their role in nuclear energy production, medical applications, and ongoing research underscores their significance in contemporary society. Understanding the properties and challenges associated with actinides (锕系元素) is crucial as we navigate the complexities of utilizing these powerful elements responsibly and effectively.