Ключевые слова: accuracy, aircraft, auto, background, ball, bearing, cars, chrome, chromed, closeup, conveyor, drive, engine, engineering, expressive, friction, gear, grease, heavy, industrial, industry, isolated, kinematics, machine, machinery, manufacture, material, mechanic, mechanical, mechanics, mechanism, metal, motion, movement, part, precision, racer, ring, roller, rolling, round, service, silver, steel, technical, technology, train, transportation, wheel, white,