Ключевые слова: background, closeup, cog, cogs, concept, connected, cutting, design, dimension, drawing, engine, engineering, equipment, factory, gear, gearing, gears, hardening, hobbing, industrial, industry, machine, machinery, mechanical, mechanics, mechanism, metal, metallic, new, object, objects, part, parts, plant, power, precision, process, production, shiny, steel, technology, teeth, tooling, transmission, white, work,