Ключевые слова: background, cogs, cogwheels, component, concept, connection, design, detail, element, engine, engineering, factory, gear connected, gear wheels, gearbox, gears, industrial, industry, interlock, joining, machine, mechanical, mechanics, mechanism, metal, metallic, node, parts, pinions, precision, repair, rotate, set, set of gears, steel, symbol, technical, technology, teeth, together, toothed, transmission, wheel,