Ключевые слова: 3d, abstract, anatomy, background, cardiology, cardiovascular, clock, clockwork, cog, cogs, concept, conceptual, creative, cyborg, element, engine, gear, gears, graphic, grunge, heart, human, illustration, industrial, industry, isolated, machine, machinery, mechanical, mechanism, medical, medicine, metal, old, organ, process, robot, science, shape, symbol, technology, valentine, wheel, work,