Ключевые слова: accuracy, angular, art, blade, bulgarian, circle, circular, construction, control, cut, disc, drive, engineering, equipment, factory, grinder, industrial, industry, iron, machine, machinery, man, manufacturing, material, metal, move, operator, placement, plant, polished, production, repair, round, saw, sculptor, sculpture, security, skills, spark, spring, steel, strength, technology, texture, tool, welding, work, worker,