fissionable

简明释义

英[ˈfɪʃənəbəl]美[ˈfɪʃnəbl]

adj. 可分裂的；可作核裂变的

n. 可裂变物质

英英释义

单词用法

同义词

反义词

例句

1.The atomic energy agency could be made responsible for the impounding, storage, and protection of the contributed fissionable and other materials.

原子能代理处能够为滤网、储蓄、捐献可裂变物质保护和其他能源负责。

2.The reaction is slowed by a combination of depletion of the fissionable material and expansion of the core.

由于裂变物质的耗尽以及由于核心的膨胀，才使反应减慢下来。

3.It is a radiological poison, specifically absorbed by bone marrow, and is used, especially the highly fissionable isotope Pu 239, as a reactor fuel and in nuclear weapons.

尤其是其极具可裂变性的同位素钸239，被用作一种核反应燃料并用在核武器中。

4.The prime example is the element uranium (U), which occurs naturally as two isotopes-the lighter, fissionable U-235 and the heavier, non-fissionable U-238.

铀（U）元素就是一个很好的例子。天然铀有两种同位素；较轻的负235可以裂变，较重的铀238则不会裂变。

5.The isotope of uranium with mass number235, fissionable with slow neutrons.

锕铀铀的同位素，原子质量数为235，与慢。

6.In a hole in the center of this system is placed a subcritical sphere of fissionable material.

在这个系统的中心圆洞中放置一枚次临界的球形可裂变物质。

7.It is a radiological poison, specifically absorbed by bone marrow, and is used, especially the highly fissionable isotope Pu 239, as a reactor fuel and in nuclear weapons.

尤其是其极具可裂变性的同位素钸239，被用作一种核反应燃料并用在核武器中。

8.The reactor uses a type of uranium that is highly fissionable.

该反应堆使用一种高度可裂变的铀。

9.Scientists are researching new materials that can be fissionable to improve energy efficiency.

科学家们正在研究新的材料，以提高能量效率，这些材料可以可裂变。

10.In nuclear physics, fissionable isotopes play a crucial role in chain reactions.

在核物理中，可裂变同位素在链式反应中起着至关重要的作用。

11.Only certain types of plutonium are fissionable under standard conditions.

只有某些类型的钚在标准条件下是可裂变的。

12.The discovery of new fissionable materials could lead to advancements in power generation.

新可裂变材料的发现可能会导致发电技术的进步。

作文

The concept of nuclear energy has been a topic of great interest and debate for many years. One of the fundamental processes that underlie the generation of nuclear energy is nuclear fission, which involves the splitting of atomic nuclei. In this context, the term fissionable refers to materials that can undergo this process. When discussing nuclear power, it is essential to understand what makes a material fissionable and how it is utilized in reactors. Fissionable materials, such as uranium-235 and plutonium-239, have the unique ability to sustain a nuclear chain reaction. This occurs when a nucleus absorbs a neutron and becomes unstable, leading to its division into smaller nuclei, along with the release of a significant amount of energy. The energy produced from fission can be harnessed to generate electricity, making fissionable materials crucial for the operation of nuclear power plants. The use of fissionable materials raises several important considerations. For instance, the mining and enrichment of uranium are critical steps in obtaining fissionable fuel. Enrichment increases the proportion of uranium-235 in the fuel mix, enhancing its efficiency and effectiveness in a reactor. However, this process can also lead to concerns about safety and environmental impact, as well as the potential for nuclear proliferation. Moreover, the management of nuclear waste generated from the fission process is another significant issue. Spent fuel contains radioactive isotopes, some of which remain hazardous for thousands of years. Therefore, the safe storage and disposal of these materials are paramount to prevent contamination and protect public health. In addition to the ethical and environmental implications, there is also a scientific aspect to the study of fissionable materials. Researchers are continually exploring new methods to improve the efficiency of fission reactions and to discover alternative fissionable substances that could be used in future reactors. For example, thorium is being investigated as a potential fissionable material due to its abundance and the reduced amount of long-lived waste it produces compared to uranium. The debate surrounding nuclear energy often highlights the balance between its benefits and risks. On one hand, fissionable materials provide a powerful source of energy that can reduce reliance on fossil fuels and decrease greenhouse gas emissions. On the other hand, the potential for catastrophic accidents, as seen in incidents like Chernobyl and Fukushima, cannot be ignored. These events have led to heightened scrutiny of nuclear power and its associated fissionable materials. In conclusion, understanding the role of fissionable materials is vital in discussions about nuclear energy. They are at the heart of the fission process, providing the means to generate substantial amounts of energy. However, the challenges related to their use, including safety, waste management, and environmental impact, must be carefully addressed. As we move forward, the continued research and development of fissionable technologies will play a crucial role in shaping the future of energy production and consumption worldwide.

核能的概念多年来一直是一个备受关注和争论的话题。核能产生的基本过程之一是核裂变，涉及原子核的分裂。在这个背景下，术语fissionable指的是可以经历这一过程的材料。当讨论核能时，理解是什么使得一种材料成为fissionable以及它如何在反应堆中被利用是至关重要的。 可裂变材料，如铀-235和钚-239，具有维持核链反应的独特能力。当一个核吸收一个中子并变得不稳定时，就会发生这种情况，导致其分裂成较小的核，并释放出大量的能量。通过裂变产生的能量可以被利用来发电，使得fissionable材料对于核电厂的运行至关重要。 使用fissionable材料引发了几个重要的考虑。例如，铀的开采和浓缩是获得fissionable燃料的关键步骤。浓缩增加了燃料混合物中铀-235的比例，提高了其在反应堆中的效率和有效性。然而，这一过程也可能引发关于安全性和环境影响的担忧，以及核扩散的潜在风险。 此外，管理裂变过程中产生的核废料也是另一个重要问题。使用过的燃料含有放射性同位素，其中一些在数千年内仍然具有危险性。因此，安全储存和处置这些材料对于防止污染和保护公众健康至关重要。 除了伦理和环境影响之外，对fissionable材料的研究还有科学方面。研究人员不断探索改善裂变反应效率的新方法，并发现未来反应堆中可能使用的替代fissionable物质。例如，钍因其丰富性及相较于铀产生的长寿命废物较少而被研究作为潜在的fissionable材料。 围绕核能的辩论常常强调其益处与风险之间的平衡。一方面，fissionable材料提供了一种强大的能源来源，可以减少对化石燃料的依赖并降低温室气体排放。另一方面，灾难性事故的潜在风险，例如切尔诺贝利和福岛事件，不容忽视。这些事件导致了对核电及其相关fissionable材料的高度审查。 总之，在讨论核能时，理解fissionable材料的作用至关重要。它们是裂变过程的核心，提供了产生大量能量的手段。然而，与其使用相关的挑战，包括安全性、废物管理和环境影响，必须得到认真解决。随着我们向前发展，对fissionable技术的持续研究和开发将在塑造全球能源生产和消费的未来中发挥关键作用。