radiation shield

简明释义

辐射屏蔽

英英释义

例句

1.Astronauts wear special suits equipped with a radiation shield when they go on spacewalks.

宇航员在进行太空行走时穿着配备有辐射屏蔽的特殊服装。

2.During the experiment, we had to ensure that the radiation shield was properly installed.

在实验过程中，我们必须确保辐射屏蔽正确安装。

3.The hospital uses lead walls as a radiation shield in the X-ray room.

医院在X光室使用铅墙作为辐射屏蔽。

4.In nuclear power plants, radiation shields are essential for ensuring the safety of workers.

在核电站中，辐射屏蔽对于确保工人的安全至关重要。

5.The spacecraft was designed with a robust radiation shield to protect astronauts from cosmic rays.

这艘宇宙飞船设计了一个坚固的辐射屏蔽，以保护宇航员免受宇宙射线的影响。

作文

In our modern world, we are constantly surrounded by various forms of energy and radiation. While some types of radiation are harmless and even beneficial, others can pose significant risks to our health and the environment. This is where a radiation shield (辐射屏蔽) becomes essential. A radiation shield is a protective barrier designed to absorb or block harmful radiation, ensuring that living organisms are safe from its adverse effects.The importance of radiation shields can be observed in several fields, most notably in medical applications, nuclear power plants, and space exploration. In the medical field, for instance, doctors use x-rays and other forms of radiation for diagnostic purposes. However, prolonged exposure to these rays can lead to serious health issues, including cancer. To mitigate these risks, hospitals employ radiation shields made from lead or other dense materials to protect both patients and medical staff during procedures involving radiation.Similarly, in nuclear power plants, radiation shields play a crucial role in ensuring safety. These facilities generate electricity through nuclear fission, a process that releases a significant amount of radiation. Engineers design containment structures and radiation shields to prevent the escape of harmful radiation into the environment. Without these protective measures, the consequences could be catastrophic, affecting not only plant workers but also nearby communities.Space exploration presents another unique challenge when it comes to radiation exposure. Astronauts face high levels of cosmic radiation while in space, which can increase their risk of developing cancer and other health problems. To address this issue, spacecraft are equipped with radiation shields that utilize materials like polyethylene and aluminum to reduce radiation exposure. Researchers are continuously working on improving these shields to ensure the safety of astronauts during long-duration missions, such as those planned for Mars.The development of effective radiation shields is an ongoing area of research. Scientists are exploring new materials and technologies to enhance the effectiveness of these shields. For example, innovative approaches involve using nanomaterials and advanced composites that can provide better protection with less weight. This is particularly important in aerospace applications, where every gram counts.In conclusion, radiation shields (辐射屏蔽) are vital components in protecting human health and the environment from harmful radiation. Their applications span across various fields, including medicine, nuclear energy, and space exploration. As technology continues to advance, the development of more effective and efficient radiation shields will remain a priority. Understanding the significance of these protective barriers helps us appreciate the intricate balance between utilizing radiation for beneficial purposes while safeguarding against its potential dangers.