ENGLISH MEBY

原子力発電、溶接技術、そして歴史の転換点」の英語長文問題

以下の英文を読み、設問に答えなさい。

The development of nuclear power plants and advanced welding techniques are intricately intertwined, representing significant technological leaps with profound historical implications. The harnessing of nuclear fission for energy generation presented unprecedented challenges in materials science and engineering. The extreme temperatures and pressures within a reactor core, coupled with the need for absolute containment to prevent radioactive leakage, demanded the development of exceptionally strong and radiation-resistant materials. This, in turn, spurred advancements in welding technology. Early nuclear reactors relied on relatively simple welding methods, often resulting in imperfections and limitations. However, as the ambition for larger and more efficient reactors grew, so did the need for more sophisticated welding techniques. The development of specialized welding processes, such as electron beam welding and gas tungsten arc welding, became crucial. These techniques allowed for the precise joining of thick, high-strength materials with minimal heat input, reducing the risk of material degradation and ensuring the structural integrity of the reactor vessel. The Chernobyl disaster in 1986 served as a stark reminder of the catastrophic consequences of inadequate welding and overall engineering practices in nuclear power plants. The accident exposed critical flaws in the reactor design and construction, particularly concerning the welding of the reactor pressure vessel. Subsequent investigations highlighted the importance of rigorous quality control, advanced non-destructive testing methods, and the implementation of stringent safety protocols in the welding process. This tragedy profoundly impacted the nuclear industry, leading to a reassessment of safety standards and a renewed focus on advanced welding techniques to ensure the long-term safety and reliability of nuclear power generation. The evolution of welding technology didn't merely contribute to the advancement of nuclear power; it also had broader implications across various industries. The demand for precision and reliability in welding for nuclear applications fostered innovation that trickled down to other sectors, such as aerospace, shipbuilding, and oil and gas. The progress made in material science and welding technologies due to the demands of nuclear power continues to drive advancements in various fields, marking a significant turning point in engineering history.

1. According to the passage, what was a major challenge in the early development of nuclear reactors?

2. What crucial role did the Chernobyl disaster play in the advancement of welding technology?

3. How did advancements in welding technology for nuclear applications affect other industries?

4. Which welding techniques are mentioned in the passage as being crucial for nuclear reactor construction?