Ключевые слова: abstract, background, business, clockwork, cog, cogwheel, concept, concepts topics, connection, cooperation, design, detailed, engine, engineering, equipment, factory, gear, horizontal, ideas, illustration, industrial, industry, machine, machine part, machinery, mechanic, mechanical, mechanism, metal, metallic, motion, no people, power, precision, reflection, shape, shiny, silver, silver metal, silver colored, steel, teamwork, technical, technology, three dimensional, threedimensional, wheel, working,