Ключевые слова: abstract, art, background, bond, business, clockwork, cog, cogwheel, concept, conceptual, connect, connection, design, engineering, factory, gear, gearbox, gearing, grunge, industrial, industry, interlock, machine, machinery, mechanical, mechanics, mechanism, metal, motion, objects, part, pattern, power, precision, steel, technology, teeth, transmission, turn, vintage, wheel,