Ключевые слова: backgrounds, business, circular, compressor, construction, cutter, cutting, design, desk, drill, drilling, electric, electrical, electrician, electricity, energy, engineer, equipment, hand, home, industrial, industry, machine, machinery, manual, metal, power, project, repairing, saw, screwdriver, set, skill, steel, technology, tool, toolbox, wire, wooden, work, worker, workshop,