Ключевые слова: apparatus, arrangement, background, business, clockwork, clockworks, closeup, cog, cogs, cogwheel, collaboration, component, design, engine, engineering, equipment, factory, gear, gears, industrial, industry, inner, interaction, interleaved, interlock, machineparts, machinery, machines, mechanical, mechanicalparts, mechanics, mechanism, metal, metallic, motion, part, rotate, steel, technology, teeth, transmission, turn, wheel, work,