Ключевые слова: accuracy, circle, classic, close, cog, cogwheel, connection, cooperation, detail, electric, engine, engineering, equipment, gear, gearbox, gearing, group, industrial, industry, interlocked, iron, machine, machinery, mechanical, metal, motor, objects, part, precision, progress, reliability, simplicity, steel, technology, teeth, together, togetherness, toned, transmission, up, wheel, work,