Ключевые слова: arc, blue, bright, connection, cut, danger, engineering, equipment, fabricate, fire, flame, flash, gas, heat, heavy, hot, improvisation, iron, labor, leadership, man, manual worker, manufacturing, material, metal, object, occupation, power, production, production ennaya line portion shipyard assembly, profession, professional, propane, protection, repair, robot, skill, skilled, smoke, spark, steel, technical production, technology, tool, torch, use, welder, welding, work, worker,