heavy water

简明释义

重水

英英释义

例句

1.In some research facilities, scientists study the properties of heavy water for various applications in nuclear physics.

在一些研究机构，科学家们研究重水的特性，以便在核物理学中进行各种应用。

2.The production of heavy water is crucial for countries that pursue nuclear energy.

对于追求核能的国家来说，重水的生产至关重要。

3.The nuclear reactor uses heavy water to slow down neutrons, making the fission process more efficient.

核反应堆使用重水来减缓中子，从而使裂变过程更加高效。

4.Some medical imaging techniques utilize heavy water to enhance the contrast in scans.

一些医学成像技术利用重水来增强扫描的对比度。

5.Using heavy water in experiments can help scientists understand the behavior of molecules in different environments.

在实验中使用重水可以帮助科学家理解分子在不同环境中的行为。

作文

Heavy water, or 重水, is a form of water that contains a larger proportion of the isotope deuterium, which is a hydrogen isotope with one neutron. This unique characteristic gives 重水 distinct physical and chemical properties compared to ordinary water, or H2O. The presence of deuterium instead of the more common protium in hydrogen leads to differences in boiling points, melting points, and even the way 重水 interacts with other substances. One of the most significant applications of 重水 is in nuclear reactors. It serves as a neutron moderator, which means it slows down neutrons so that they can effectively sustain a nuclear chain reaction. This property makes 重水 an essential component in certain types of nuclear reactors, particularly those designed for heavy water fission. In these reactors, 重水 allows for the use of natural uranium as fuel, which is less refined than the enriched uranium typically used in light water reactors. This advantage can lead to cost savings and increased efficiency in some nuclear power generation processes.Additionally, 重水 is utilized in scientific research, particularly in the fields of chemistry and biology. Researchers often use 重水 in experiments to trace chemical pathways and study reaction mechanisms. By replacing regular water with 重水, scientists can track the movement of molecules in a way that is not possible with ordinary water. This technique has provided valuable insights into complex biochemical processes and has advanced our understanding of cellular functions.Despite its benefits, the handling of 重水 comes with certain challenges. Due to its higher density, 重水 can be more difficult to manage than regular water. Furthermore, while 重水 is not highly toxic, it can still pose health risks if consumed in large quantities. Prolonged exposure to 重水 can disrupt biological processes, leading to potential health issues. Therefore, safety precautions are necessary when working with this substance, particularly in industrial and laboratory settings.In summary, 重水 plays a crucial role in various scientific and industrial applications. Its unique properties make it invaluable in nuclear technology and research, contributing to advancements in energy production and scientific understanding. As we continue to explore the potential of 重水, it is essential to balance its benefits with the necessary safety measures to ensure responsible use. Understanding 重水 and its implications will help pave the way for future innovations in both science and technology.

重水是水的一种形式，它含有较大比例的氘同位素，氘是带有一个中子的氢同位素。这一独特特性使得重水与普通水（H2O）相比，具有不同的物理和化学性质。氘代替了更常见的氢同位素质子，导致重水在沸点、熔点以及与其他物质的相互作用方式上存在差异。重水最重要的应用之一是在核反应堆中。它作为中子减速剂，这意味着它减缓中子的速度，以便有效维持核链反应。这一特性使得重水成为某些类型核反应堆的重要组成部分，特别是那些设计用于重水裂变的反应堆。在这些反应堆中，重水允许使用天然铀作为燃料，而天然铀比通常在轻水反应堆中使用的浓缩铀更少精炼。这一优势可以在某些核电生产过程中带来成本节约和效率提高。此外，重水还被用于科学研究，特别是在化学和生物学领域。研究人员常常在实验中使用重水，以追踪化学路径和研究反应机制。通过用重水替代普通水，科学家可以以普通水无法实现的方式追踪分子的运动。这一技术为复杂的生化过程提供了宝贵的见解，并推动了我们对细胞功能的理解。尽管重水有其益处，但处理重水也面临一些挑战。由于其密度较高，重水可能比普通水更难管理。此外，虽然重水并不高度毒性，但如果大量摄入，仍可能对健康构成风险。长期接触重水可能干扰生物过程，导致潜在的健康问题。因此，在工业和实验室环境中处理这种物质时，需要采取安全预防措施。总之，重水在各种科学和工业应用中发挥着至关重要的作用。它独特的性质使其在核技术和研究中不可或缺，为能源生产和科学理解的进步做出了贡献。随着我们继续探索重水的潜力，平衡其益处与必要的安全措施，以确保负责任的使用，将是至关重要的。理解重水及其影响将有助于为未来的科学和技术创新铺平道路。