Ключевые слова: accuracy, blue, circle, classic, close up, cog, cog wheel, cogwheel, connection, cooperation, detail, electric motor, engine, engineering, equipment, gear, gearbox, gearing, group of objects, industrial, industry, innovation, interlocked, iron, large, machine, machine teeth, machinery, mechanical, metal, part of, power, precision, progress, reliability, simplicity, steel, technology, together, togetherness, toned, transmission, turn, turning, unity, wheel, work, working,