Ключевые слова: abilities, abstract, air, architecture, background, build, builder, ceiling, comfort, concept, conditioner, conditioning, conservation, conserve, contractor, cooling, cost, crisis, design, duct, efficiency, electric, energy, environment, environmental, flow, gas, global, grate, heat, high, industrial, industry, interior, light, office, pattern, pvc, radiator, register, square, summer, system, temperature, utility, vent, ventilation, warming, watt, winter,