Ключевые слова: background, build, building, circular, clock, close, cog, cogs, cogwheels, concept, conceptual, design, detail, document, energy, engineering, equipment, gears, idea, indoor, industrial, industry, instruction, iron, isolated, key, machine, macro, manual, many, mechanical, metal, objects, old, over, paper, parts, plans, power, procedure, set, steel, still, studio, team, teamwork, tech, technology, teeth, together, tools, user manual, wheel,