Ключевые слова: abstract, arrangement, background, bike, chain, circle, closeup, cog, cogwheel, connection, cycle, detail, drive, energy, engine, equipment, forklift, gear, industrial, iron, link, machine, machinery, manufacturing, mechanical, metallic, motor, motorcycle, new, object, oil, part, power, rear, roller, rotation, service, shiny, speed, sport, steel, strength, technical, technology, transmission, transportation, vehicle, wheel, work,