Ключевые слова: air, appliance, blow, blower, boiler, building, central, compressor, condition, conditioner, control, cool, deck, duct, dusk, duty, electric, electrical, electricity, engineer, examining, exterior, factory, fan, flow, heat, heater, home, industrial, industry, occupation, outside, pipe, pipeline, power, pump, repair, roof, rooftop, row, safety, seating, sky, system, technology, temperature, unit, ventilation, wind,