reactors

简明释义

英[rɪˈæktəz]美[riˈæktərz]

n. [化工]反应器（reactor 的复数）；反应者

英英释义

单词用法

同义词

反义词

例句

1.The reactors began to explode and melt down.

反应堆发生了爆炸和融毁。

2.Normally, the towers inhale air to cool hot water from the reactors.

通常说来，冷却塔吸入空气是为了冷却反应堆的沸水。

3.“Monster masts” provoke almost as much opposition as nuclear reactors.

大量的电线杆引起了几乎和核电站一样多的反对声。

4.It envisions an eventual total of six reactors.

按照协议最终将建造六个反应堆。

5.Most reactors were shut down and have not been restarted.

绝大多数反应堆被关闭而且目前还没有被重启。

6.The Fukushima reactors were built in the early 1970s.

福岛县的反应器在1970年代早期建成。

7.Some reactors allow for online refuelling.

有些反应堆能够在线换料。

8.These are mobile nuclear reactors.

它们是可移动的核反应堆。

9.Of Japan's 54 nuclear reactors, 43 are currently offline.

日本共有54个核反应堆，目前43个处于关闭状态。

10.The nuclear power plant has several reactors that generate electricity.

这座核电站有几个反应堆用于发电。

11.Some countries are investing in fusion reactors for cleaner energy.

一些国家正在投资于聚变反应堆以获得更清洁的能源。

12.Scientists are studying the safety of reactors in earthquake-prone areas.

科学家们正在研究位于地震多发区的反应堆的安全性。

13.The efficiency of reactors can be improved with advanced technology.

利用先进技术可以提高反应堆的效率。

14.The new design of reactors aims to reduce waste production.

新设计的反应堆旨在减少废物产生。

作文

In the field of nuclear energy, the term reactors refers to devices that initiate and control a sustained nuclear chain reaction. These reactors are essential for generating electricity in nuclear power plants, where the heat produced from nuclear fission is used to produce steam that drives turbines. The design and operation of reactors have evolved significantly since the first commercial nuclear power plant was built in the mid-20th century. Today, there are various types of reactors, including pressurized water reactors (PWR), boiling water reactors (BWR), and advanced designs like the integral fast reactor (IFR) and small modular reactors (SMR). Each type has its own advantages and challenges, particularly concerning safety, efficiency, and waste management.The safety of reactors is a paramount concern, especially in the wake of historical accidents such as Chernobyl and Fukushima. Modern reactors are designed with multiple safety systems to prevent meltdowns and contain radioactive materials. Features like passive safety systems, which rely on natural forces like gravity and convection, help ensure that even in the event of a failure, the reactors can shut down safely without the need for external power or human intervention.In addition to safety, the efficiency of reactors is crucial for their viability as a sustainable energy source. Innovations in reactor technology aim to improve fuel utilization, reduce waste production, and enhance the overall thermal efficiency of the plants. For instance, some new designs are being developed to use thorium as a fuel source instead of uranium, which could potentially lead to less radioactive waste and greater fuel availability.Another aspect to consider is the environmental impact of reactors. While nuclear energy produces minimal greenhouse gas emissions during operation, the entire lifecycle of nuclear power—from uranium mining to waste disposal—raises concerns about ecological damage and long-term sustainability. The management of spent nuclear fuel remains a significant challenge, as it remains hazardous for thousands of years. As a result, many countries are exploring advanced recycling techniques and deep geological storage solutions to address these issues.The future of reactors and nuclear energy is also linked to global energy demands. As the world seeks to transition away from fossil fuels and combat climate change, nuclear power presents a low-carbon alternative that can provide a stable and reliable energy supply. However, public perception and political will play crucial roles in the expansion of nuclear energy. Many communities remain apprehensive about the risks associated with reactors, and public acceptance is vital for the development of new facilities.In conclusion, reactors are fundamental components of nuclear energy generation, offering both opportunities and challenges. As technology advances and society's energy needs evolve, the role of reactors in our energy landscape will continue to be a topic of significant importance. Balancing safety, efficiency, environmental concerns, and public perception will be key to harnessing the potential of nuclear power in a sustainable way.

在核能领域，术语反应堆指的是启动和控制持续核链反应的装置。这些反应堆对于核电站发电至关重要，在这里，核裂变产生的热量用于产生蒸汽，从而驱动涡轮机。自20世纪中叶建造第一个商业核电站以来，反应堆的设计和运行经历了显著的发展。如今，有多种类型的反应堆，包括压水反应堆（PWR）、沸水反应堆（BWR）以及先进设计如整体快速反应堆（IFR）和小型模块化反应堆（SMR）。每种类型都有其自身的优缺点，特别是在安全性、效率和废物管理方面。安全性是反应堆的首要关注点，尤其是在切尔诺贝利和福岛等历史事故之后。现代反应堆设计了多重安全系统，以防止熔毁和控制放射性物质。被动安全系统等功能依赖于重力和对流等自然力量，确保即使在故障情况下，反应堆也能安全停堆，而无需外部电源或人为干预。除了安全性，反应堆的效率对于其作为可持续能源来源的可行性至关重要。反应堆技术的创新旨在提高燃料利用率，减少废物产生，并增强电厂的整体热效率。例如，一些新设计正在开发使用钍作为燃料来源，而不是铀，这可能导致更少的放射性废物和更大的燃料可用性。另一个需要考虑的方面是反应堆的环境影响。虽然核能在运行过程中产生的温室气体排放极少，但核电的整个生命周期——从铀矿开采到废物处置——引发了生态损害和长期可持续性的担忧。处理使用过的核燃料仍然是一个重大挑战，因为它在数千年内都是危险的。因此，许多国家正在探索先进的回收技术和深地质储存解决方案，以解决这些问题。反应堆和核能的未来也与全球能源需求息息相关。随着世界寻求摆脱化石燃料并应对气候变化，核能提供了一种低碳替代方案，可以提供稳定可靠的能源供应。然而，公众认知和政治意愿在核能扩展中发挥着关键作用。许多社区对反应堆相关风险仍持谨慎态度，公众接受度对于新设施的发展至关重要。总之，反应堆是核能发电的基本组成部分，提供了机遇和挑战。随着技术的进步和社会能源需求的演变，反应堆在我们的能源格局中的角色将继续成为一个重要话题。平衡安全性、效率、环境问题和公众认知将是以可持续方式利用核能潜力的关键。