Ключевые слова: architecture, arrangement, capacity, cavern, circular, construction, corridor, depot, design, energy, engineering, environment, equipment, exploration, facility, geology, illumination, industrial, infrastructure, inspection, layout, lighting, lines, location, machinery, materials, mining, modern, operations, orange, pipes, processing, production, resources, round, safety, services, shadows, site, spacing, storage, surface, symmetry, system, tanks, technology, transport, tunnel, underground, utility, vast, volume, workers,