Ключевые слова: 3d, background, business, cog, cogwheel, component, concept, conceptual, connect, connection, cooperation, engine, engineering, equipment, fit, gear, illustration, industrial, industry, interlock, machine, machined, machinery, mechanical, mechanics, mechanism, meshing, metal, metallic, mobile, part, perpetuum, power, rotation, steel, still, teamwork, technical, technology, teeth, toothed, wheel,