Ключевые слова: activity, assembly, construction, craftsman, craftsmanship, current, design, development, electric, engineering, environment, equipment, fabrication, factory, force, forge, gear, glow, industrial, industry, laboratory, light, line, machinery, manufacture, materials, metal, metals, metalworking, night, nighttime, precision, production, professional, protective, safety, skill, sparks, surgery, tasks, teamwork, technology, tools, welder, welding, worker, workshop,