Ключевые слова: activity, architecture, black, building, closeup, construction, crane, engineer, engineering, equipment, factory, fuel, generation, heavy, indoors, industrial, industry, iron, large, machine, machinery, machines, manufacturing, mechanic, metal, metallic, object, occupation, old, outdoors, part, pipeline, power, robot, science, single, site, steel, structure, technology, tool, transportation, two, work, worker, working, workshop, yellow,