The journey to rebuild homes presents a formidable challenge, like a series of daunting mountains. The first challenge is construction. Once-sturdy houses are now reduced to ruins, and rebuilding safe, stable, and disaster-resistant shelters is no easy task. Accurately calculating the forces acting on building structures and selecting appropriate building materials to suit the local climate and geological conditions are crucial issues that must be addressed. Most survivors lack the expertise and experience required for complex architectural design and construction techniques, and even the slightest carelessness could create safety hazards in newly constructed homes. Energy supply presents another daunting technical challenge. The war destroyed existing power infrastructure and energy networks, making restoring power a top priority. Utilizing renewable energy sources like solar and wind requires specialized equipment and technology, while traditional oil-fired power generation faces fuel shortages. Developing an efficient and stable energy system to ensure electricity meets people's daily needs and production, allowing light to shine again on this darkened land, presents a significant challenge. Furthermore, water treatment and supply present challenges. Water sources can be contaminated, and purification requires advanced technology and equipment. Digging wells, laying water pipes, and establishing an effective sewage treatment system—each step requires precise technical expertise and scientific planning. Without clean water, people's lives would be disrupted, and disease could spread. A lack of agricultural production technology also presents a major obstacle. Reclaiming wasteland and planting crops requires specialized agricultural knowledge and technical guidance regarding proper fertilization, pest control, and selection of high-quality seed varieties. Without this technical support, crop yield and quality are difficult to guarantee, threatening the stability of the food supply. These complex and intertwined technical challenges require in-depth research and expert solutions. They not only test the wisdom and courage of Xiao Yi and the survivors, but also determine the success of rebuilding their homes and future development. Standing on the devastated land, Xiao Yi and his team face a complete collapse of the power system and severe damage to the water supply. Repairing the power system presents an immense challenge. The intricate network of power lines has been shattered by the disaster, transformers have been shattered, and pylons have been toppled. Every section of the line must be meticulously inspected, and every component meticulously tested and replaced. Xiao Yi and his team, carrying heavy tool kits, shuttled between the towering power poles. The scorching summer sun scorched the earth mercilessly, their clothes soaked with sweat, yet they dared not rest for a moment. At night, the repair site was brightly lit, and by the light, they continued to work, their eyes bloodshot, but their work remained methodical. Rebuilding the water supply system was even more challenging. Pipes were broken, water was leaking, and much of the water supply equipment was damaged. Finding the broken pipes was like looking for a needle in a haystack; they had to investigate inch by inch. Digging, replacing pipes, and debugging equipment—every step required perfection. In the muddy tunnels, Xiao Yi and his teammates, covered in grime and exhausted, held a single goal in mind: to restore the water supply system to normal operation as soon as possible and provide people with clean water again. Both tasks presented enormous challenges for Xiao Yi and his team, but they remained steadfast, forging ahead step by step with unwavering faith and unwavering perseverance.

During the arduous restoration process, Xiao Yi and his team discovered they had very few resources to rely on. Modern technical equipment had been largely destroyed in the disaster, leaving only a few fragmented, worn, and yellowed books. Some of these books were missing pages, others had illegible writing, and the contents were often outdated or incomplete. Yet, Xiao Yi and his teammates, as if they had found a treasure, carefully leafed through them, searching for even the slightest clue between the lines. The technicians among the survivors became crucial to their restoration efforts. However, these technicians came from diverse fields, possessed varying expertise, and were physically and mentally exhausted by the disaster. Gathering together, they relied on their remaining expertise to recall familiar technical procedures and methods. Every discussion was fraught with uncertainty and controversy. Everyone gathered around, poring over books and crude blueprints, each expressing their opinions. Sometimes heated arguments erupted over minor technical details, while others sparked excitement over a new idea. They fumbled through trial and error, failing again and again, only to start over again and again. Every small step forward was the product of countless hours of sweat and effort. Each setback didn't make them give up, but instead strengthened their resolve to succeed. Thus, through arduous exploration, they steadily advanced toward their goal of restoration.

Xiao Yi and his team faced numerous setbacks on their journey to repair the power system. Initially, they pursued the planned repair plan with high hopes. However, reality dealt a heavy blow. A newly installed part was incompatible with the existing equipment, causing a short circuit and sparks to fly. Their hopes were instantly dashed. Then, while rerouting the lines, they encountered extreme weather. The strong winds and heavy rain toppled the newly erected power towers, undoing all their efforts. Repeated failure brought the team's morale to a low point. Fatigue and frustration were written all over their faces, and some even began to doubt whether they could complete the daunting task. But Xiao Yi remained steadfast, encouraging everyone: "Brothers, don't lose heart! Failure is only temporary. We must not give up. As long as we persevere, we will succeed!" His voice was powerful, his eyes gleaming with an unyielding glint. Encouraged by Xiao Yi's words, the team regained their spirits and continued their work. They constantly refined their plans, tried new methods, and toiled day and night. Finally, after countless attempts and adjustments, on a quiet night, when they reconnected the power, part of the area was instantly illuminated. At that moment, cheers echoed in the night sky, and everyone's eyes sparkled with tears of excitement. They succeeded. Although power was only restored to a partial area, it was the result of their perseverance and determination, and it also brought hope for the subsequent full restoration of power.

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