Ключевые слова: ac, air, building, cable, check, condition, conditioner, conditioning, construction, control, electric, electrical, electrician, electricity, engineer, equipment, furnace, hand, hardware, heat, home, hvac, industrial, industry, install, installation, installer, installing, job, machine, magnetic contactor, maintenance, male, man, manual, plug, power, professional, repair, repairman, screwdriver, service, system, technician, technology, test, tool, wire, work, worker,