nuclear fission

简明释义

核裂变

英英释义

例句

1.Scientists are researching ways to make nuclear fission 核裂变 more efficient for future energy needs.

科学家们正在研究如何提高核裂变 nuclear fission的效率，以满足未来的能源需求。

2.One of the byproducts of nuclear fission 核裂变 is radioactive waste that must be carefully managed.

在核裂变 nuclear fission过程中产生的副产品之一是必须谨慎处理的放射性废物。

3.Countries around the world utilize nuclear fission 核裂变 for both civilian and military purposes.

世界各国利用核裂变 nuclear fission用于民用和军事目的。

4.The process of nuclear fission 核裂变 is used in nuclear power plants to generate electricity.

核电站利用核裂变 nuclear fission过程来发电。

5.The discovery of nuclear fission 核裂变 in the 20th century changed the landscape of energy production.

20世纪对核裂变 nuclear fission的发现改变了能源生产的格局。

作文

Nuclear energy has been a subject of fascination and debate for decades. Among the various processes that release nuclear energy, nuclear fission stands out as one of the most significant. 核裂变 is the process by which an atomic nucleus splits into two or more smaller nuclei, along with the release of a substantial amount of energy. This phenomenon is not only pivotal in the realm of physics but also plays a crucial role in the production of electricity in nuclear power plants. The discovery of nuclear fission dates back to the late 1930s when scientists such as Lise Meitner and Otto Hahn first observed the splitting of uranium atoms. Their groundbreaking work laid the foundation for harnessing this powerful reaction for both energy production and, unfortunately, weaponry. The energy released during nuclear fission is immense; it can be millions of times greater than that released from chemical reactions, making it a highly efficient source of energy.In a nuclear reactor, the process of nuclear fission is carefully controlled to generate heat, which is then used to produce steam that drives turbines to generate electricity. The fuel typically used in these reactors is uranium-235 or plutonium-239. When a neutron collides with the nucleus of a fissile atom, it can cause the nucleus to become unstable and split. This splitting releases additional neutrons, which can then initiate further reactions in a chain reaction, sustaining the process of nuclear fission.However, despite its advantages, nuclear fission raises significant concerns regarding safety and environmental impact. The catastrophic accidents at Chernobyl and Fukushima serve as stark reminders of the potential dangers associated with nuclear power. The management of radioactive waste generated from nuclear fission is another pressing issue, as these materials remain hazardous for thousands of years. Thus, while nuclear fission can provide a vast supply of energy with low greenhouse gas emissions, it also necessitates stringent safety measures and long-term waste management strategies.In conclusion, nuclear fission is a powerful process that has transformed our approach to energy production. It offers a viable alternative to fossil fuels, contributing to a reduction in carbon emissions. However, the challenges it presents cannot be overlooked. As we advance technologically, it is imperative that we continue to explore safer methods of harnessing nuclear fission while addressing the associated risks. The future of energy may well depend on our ability to balance the benefits and dangers of this remarkable scientific discovery.

核能几十年来一直是一个引人入胜和备受争议的话题。在释放核能的各种过程中，核裂变作为最重要的过程之一脱颖而出。核裂变是原子核分裂成两个或多个较小核的过程，并释放出大量的能量。这一现象不仅在物理学领域至关重要，而且在核电站的电力生产中发挥着关键作用。核裂变的发现可以追溯到20世纪30年代末，当时科学家如丽莎·梅特纳和奥托·哈恩首次观察到铀原子的分裂。他们的开创性工作为利用这一强大反应奠定了基础，无论是在能源生产还是不幸地在武器制造方面。核裂变过程中释放的能量是巨大的；它可以比化学反应释放的能量高出数百万倍，使其成为一种高效的能源来源。在核反应堆中，核裂变过程被精心控制以产生热量，然后用来产生蒸汽，驱动涡轮机发电。通常在这些反应堆中使用的燃料是铀-235或钚-239。当一个中子与可裂变原子的核碰撞时，它可能导致核变得不稳定并发生分裂。这种分裂释放出额外的中子，这些中子可以启动进一步的反应，形成链式反应，从而维持核裂变过程。然而，尽管有其优点，核裂变也引发了关于安全性和环境影响的重大担忧。切尔诺贝利和福岛的灾难性事故清晰地提醒我们与核能相关的潜在危险。来自核裂变产生的放射性废物管理是另一个紧迫的问题，因为这些材料在数千年内仍然是危险的。因此，虽然核裂变能够提供大量低温室气体排放的能源，但它也需要严格的安全措施和长期的废物管理策略。总之，核裂变是一个强大的过程，改变了我们对能源生产的看法。它为化石燃料提供了一种可行的替代方案，有助于减少碳排放。然而，它所带来的挑战也不能被忽视。随着技术的发展，我们必须继续探索更安全的方法来利用核裂变，同时解决相关风险。能源的未来可能在于我们平衡这一显著科学发现的益处与危险的能力。