Ключевые слова: abstract, aesthetic, background, black, business, classic, closeup, cog, cogs, cogwheel, concept, connect, connection, cooperation, design, engine, engineering, equipment, factory, gear, gearbox, gears, idea, industrial, industry, interlock, machine, machinery, macro, mechanical, mechanics, mechanism, metal, metallic, motion, motorcycle, parts, power, precision, rotate, spares, steel, success, team, teamwork, technology, teeth, wheel, work,