Ключевые слова: accuracy, automotive, bevel, blue, closeup, cog, cogs, cogwheel, concept, connect, connection, cooperation, design, drive, engineering, equipment, factory, gear, gearbox, gearing, gears, industrial, industry, iron, machine, machinery, manufacture, mechanical, mechanism, metal, module, movement, part, pinion, pitch, precision, production, progress, ratio, shaft, spare, steel, structure, technology, teeth, tool, tooth, transfer, transmission, wheel,