Ключевые слова: abstract, accuracy, background, clock, closeup, cog, cogwheel, concept, connect, connection, detail, drive, energy, engine, engineering, equipment, gear, gearbox, industrial, industry, innovation, iron, lubricant, machine, machinery, mechanic, mechanical, mechanism, metal, molding, motor, moulding, old, part, pattern, pinion, power, precision, process, reducer, reduction, swiss, system, technology, time, tooth, transmission, turning, wheel, working,