nuclear fission

简明释义

核分裂

英英释义

例句

1.The discovery of nuclear fission 核裂变 was a turning point in physics.

核裂变的发现是物理学的一个转折点。

2.Scientists are studying nuclear fission 核裂变 to improve reactor efficiency.

科学家们正在研究核裂变以提高反应堆的效率。

3.Nuclear power plants utilize nuclear fission 核裂变 to produce steam that drives turbines.

核电站利用核裂变产生蒸汽，推动涡轮机。

4.Many countries rely on nuclear fission 核裂变 for their electricity generation.

许多国家依赖核裂变来发电。

5.The process of nuclear fission 核裂变 releases a significant amount of energy.

核裂变的过程释放出大量的能量。

作文

Nuclear energy has been a topic of great interest and debate for decades. One of the fundamental processes behind nuclear energy is nuclear fission, which is the splitting of an atomic nucleus into two or more smaller nuclei, along with the release of a significant amount of energy. This process is not only crucial for understanding how nuclear reactors work but also plays a key role in the development of nuclear weapons. Nuclear fission occurs when a heavy nucleus, such as uranium-235 or plutonium-239, absorbs a neutron and becomes unstable. As a result, it splits into smaller nuclei, known as fission fragments, and releases additional neutrons and energy in the form of heat. This heat can be harnessed to produce steam, which drives turbines to generate electricity. The discovery of nuclear fission in the late 1930s marked a turning point in science and technology. Scientists like Lise Meitner and Otto Hahn were pivotal in this discovery, which opened up new avenues for energy production. The first controlled nuclear chain reaction was achieved in 1942 by a team led by Enrico Fermi at the University of Chicago. This breakthrough demonstrated the potential of nuclear fission as a powerful energy source.However, the use of nuclear fission is not without its challenges. While it provides a substantial amount of energy with relatively low greenhouse gas emissions, concerns about safety, radioactive waste, and nuclear proliferation remain significant issues. The catastrophic accidents at Chernobyl in 1986 and Fukushima in 2011 have heightened public fear regarding the safety of nuclear power plants. These incidents highlighted the potential dangers associated with nuclear fission and the importance of stringent safety measures and regulations.Moreover, the management of radioactive waste generated from nuclear fission poses another challenge. Spent nuclear fuel remains hazardous for thousands of years, necessitating secure storage solutions that can prevent contamination of the environment. As countries continue to explore renewable energy sources, the debate over the role of nuclear fission in the future energy landscape intensifies. Despite these challenges, many experts argue that nuclear fission could play a vital role in achieving energy security and combating climate change. Advances in technology, such as the development of small modular reactors and next-generation reactors, promise to enhance the safety and efficiency of nuclear power. Furthermore, nuclear fission can serve as a stable energy source that complements intermittent renewable sources like wind and solar power.In conclusion, nuclear fission is a complex yet fascinating process that has significantly impacted our world. It offers both opportunities and challenges in the quest for sustainable energy. As we move forward, it is essential to balance the benefits of nuclear fission with the need for safety and environmental protection. Continued research and innovation in this field will be crucial in determining the future of energy production and consumption worldwide.

核能多年来一直是一个备受关注和争议的话题。核能的基本过程之一是核裂变，即将原子核分裂成两个或多个较小的核，同时释放出大量的能量。这个过程不仅对理解核反应堆的工作原理至关重要，而且在核武器的发展中也发挥着关键作用。核裂变发生在重核如铀-235或钚-239吸收一个中子后，变得不稳定。因此，它分裂成较小的核，被称为裂变碎片，并释放出额外的中子和以热量形式释放的能量。这种热量可以被利用来产生蒸汽，推动涡轮机发电。核裂变的发现标志着科学和技术的一个转折点。莉塞·迈特纳和奥托·哈恩等科学家在这一发现中起到了重要作用，这为能源生产开辟了新途径。1942年，由恩里科·费米领导的团队在芝加哥大学实现了第一次受控的核链反应。这一突破展示了核裂变作为一种强大能源来源的潜力。然而，核裂变的使用并非没有挑战。尽管它提供了大量的能源，并且温室气体排放相对较低，但安全性、放射性废物和核扩散的担忧仍然是重大问题。1986年的切尔诺贝利事故和2011年的福岛事故加剧了公众对核电站安全性的恐惧。这些事件突显了与核裂变相关的潜在危险，以及严格的安全措施和监管的重要性。此外，管理核裂变产生的放射性废物也是另一个挑战。使用过的核燃料在数千年内仍然是危险的，因此需要安全的储存解决方案，以防止环境污染。随着各国继续探索可再生能源，关于核裂变在未来能源格局中的角色的辩论愈发激烈。尽管面临这些挑战，许多专家认为核裂变在实现能源安全和应对气候变化方面可能发挥重要作用。技术的进步，如小型模块化反应堆和下一代反应堆的发展，承诺提高核能的安全性和效率。此外，核裂变可以作为一个稳定的能源来源，补充间歇性的可再生能源，如风能和太阳能。总之，核裂变是一个复杂而迷人的过程，对我们的世界产生了重大影响。它在追求可持续能源的过程中提供了机遇和挑战。随着我们向前推进，平衡核裂变的好处与安全和环境保护的需要至关重要。在这一领域的持续研究和创新将对确定全球能源生产和消费的未来至关重要。