Ключевые слова: activity, alloy, burning, business, cnc machine, color image, construction, cut, cut out, cutting, cutting board, danger, employment and labor, engineering, equipment, factory, flame, fossil fuel, fuel, gas, heat temperature, industrial equipment, industry, machine part, manual, manual worker, manufacturing, manufacturing equipment, metal, metal industry, metal worker, metalwork, motion, occupation, one man only, one person, oxygen, people, sparks, steel, torch, wastage, welder, welding, welding torch, work tool, working, workshop,