control rod

简明释义

控制杆

英英释义

例句

1.In a pressurized water reactor, the control rod absorbs neutrons to control the chain reaction.

在压水反应堆中，控制棒吸收中子以控制链式反应。

2.The nuclear reactor's safety is heavily reliant on the proper functioning of the control rod.

核反应堆的安全性在很大程度上依赖于控制棒的正常运作。

3.The research team conducted experiments to improve the efficiency of the control rod design.

研究小组进行了实验，以提高控制棒设计的效率。

4.The control rod can be adjusted to regulate the fission process in the reactor.

可以调整控制棒以调节反应堆中的裂变过程。

5.During the emergency shutdown, the technicians quickly inserted the control rod to halt the reaction.

在紧急停机期间，技术人员迅速插入控制棒以停止反应。

作文

In the realm of nuclear engineering, the concept of a control rod (控制棒) is of paramount importance. These rods play a crucial role in regulating the fission process within a nuclear reactor. To understand their significance, one must first grasp the basics of how a nuclear reactor operates. At its core, a nuclear reactor generates energy through the splitting of atomic nuclei, a process known as nuclear fission. When a nucleus splits, it releases a substantial amount of energy, along with additional neutrons that can further induce fission in nearby nuclei. This chain reaction is what produces the heat necessary to generate electricity.However, if left unchecked, this chain reaction could spiral out of control, leading to catastrophic consequences. This is where control rods (控制棒) come into play. Made from materials that absorb neutrons, such as boron or cadmium, these rods can be inserted or withdrawn from the reactor core to manage the rate of fission. By adjusting the position of the control rods (控制棒), operators can either slow down or accelerate the reaction, ensuring that it remains within safe operational limits.The design and operation of control rods (控制棒) are critical for the safety and efficiency of a nuclear power plant. In a typical reactor, multiple control rods (控制棒) are used in conjunction with fuel rods, which contain the fissile material. The precise positioning of these rods is monitored continuously, allowing for real-time adjustments based on the reactor's performance. If the reactor begins to overheat or if there is a sudden spike in neutron activity, operators can quickly insert the control rods (控制棒) deeper into the core to absorb excess neutrons and stabilize the reaction.Moreover, control rods (控制棒) are not only essential during normal operations but also during emergency situations. In the event of a malfunction or an unexpected increase in reactor temperature, the rapid deployment of control rods (控制棒) can prevent a meltdown by halting the fission process almost instantaneously. This safety mechanism is a fundamental aspect of reactor design, ensuring that even in the face of unforeseen challenges, the reactor can be brought back under control.In addition to their primary function of regulating fission, control rods (控制棒) also contribute to the overall efficiency of the reactor. By optimizing the neutron economy within the reactor, these rods help maintain a steady output of energy while minimizing waste. This balance is crucial not only for the economic viability of nuclear power but also for reducing the environmental impact associated with energy production.In conclusion, the role of control rods (控制棒) in nuclear reactors cannot be overstated. They are vital components that ensure the safe and efficient operation of nuclear power plants. Understanding their function provides insight into the complexities of nuclear energy production and highlights the importance of engineering solutions in managing powerful natural processes. As the world continues to explore sustainable energy sources, the technology surrounding control rods (控制棒) will undoubtedly evolve, further enhancing the safety and reliability of nuclear power generation.

在核工程领域，控制棒（control rod）的概念至关重要。这些棒在调节核反应堆内的裂变过程中发挥着关键作用。要理解它们的重要性，首先必须掌握核反应堆的基本工作原理。核反应堆的核心通过原子核的裂变产生能量。原子核分裂时，会释放出大量能量以及额外的中子，这些中子可以进一步诱导附近的原子核发生裂变。这一链式反应产生了发电所需的热量。然而，如果不加以控制，这一链式反应可能会失控，导致灾难性的后果。这就是控制棒（control rod）发挥作用的地方。这些棒由吸收中子的材料制成，如硼或镉，可以插入或拔出反应堆核心，以管理裂变速率。通过调整控制棒（control rod）的位置，操作员可以减缓或加速反应，确保其保持在安全的操作范围内。控制棒（control rod）的设计和操作对于核电厂的安全性和效率至关重要。在典型的反应堆中，多个控制棒（control rod）与含有裂变材料的燃料棒一起使用。这些棒的精确定位会持续监测，使得根据反应堆性能进行实时调整成为可能。如果反应堆开始过热或中子活动突然增加，操作员可以迅速将控制棒（control rod）更深地插入核心，以吸收多余的中子并稳定反应。此外，控制棒（control rod）不仅在正常操作期间是必不可少的，而且在紧急情况下也同样重要。在发生故障或反应堆温度意外上升的情况下，迅速部署控制棒（control rod）可以通过几乎瞬间停止裂变过程来防止熔毁。这一安全机制是反应堆设计的基本方面，确保即使面临不可预见的挑战，反应堆也能恢复控制。除了调节裂变的主要功能外，控制棒（control rod）还提高了反应堆的整体效率。通过优化反应堆内的中子经济学，这些棒有助于维持稳定的能量输出，同时最小化废物。这种平衡对于核电的经济可行性至关重要，同时也有助于减少与能源生产相关的环境影响。总之，控制棒（control rod）在核反应堆中的作用不容小觑。它们是确保核电厂安全高效运行的重要组成部分。理解它们的功能提供了对核能生产复杂性的洞察，并突显了工程解决方案在管理强大自然过程中的重要性。随着世界继续探索可持续能源来源，围绕控制棒（control rod）的技术无疑会不断演进，进一步增强核能发电的安全性和可靠性。