Ключевые слова: ac, age, air, building, check, checklist, commercial, condition, conditioner, conditioning, construction, control, electric, electrical, electrician, electricity, employee, engineer, engineering, equipment, gear, group, heating, holding, hvac, industry, inspecting, inspection, inspector, instalation, install, job, maintenance, man, mature, older, people, professional, quality, repair, report, safety, service, teamwork, technician, uniform, unit, worker,