Ключевые слова: abstract, architecture, background, building, business, concrete, construction, design, dirty, energy, engineering, environment, equipment, factory, floor, horizontal, indoor, industrial, industry, inside, interior, iron, labor, large, machine, machinery, manufacture, manufacturing, metal, old, path, perspective, pipe, power, production, rise, road, room, space, stair, staircase, stairway, steel, step, structure, supply, technology, up, way, work,