Ключевые слова: abstract, backdrop, background, business, clock, clockwork, closeup, cog, cogs, cogwheel, concept, engine, engineering, equipment, factory, gear, gearing, gears, industrial, industry, iron, isolated, machine, machinery, manufacture, mechanic, mechanical, mechanics, mechanism, metal, metallic, motion, movement, objects, parts, power, retro, rotate, steel, technical, technology, teeth, time, transmission, vintage, watch, wheel, work,