Ключевые слова: abstract, ai, auto, background, ball, bearing, blue, business, chrome, circle, conceptual, connection, constructing, detail, device, drive, engine, engineer, engineering, gear, gearing, group, industrial, industry, iron, job, machine, machinery, mechanism, metal, metallic, motor, occupation, part, plant, power, reflection, repair, repairing, ring, roller, service, spare, steel, technical, technology, tool, turning, vehicle, workshop,