Ключевые слова: abstract, ac, air, alloy, aluminum, background, barrierblack, border, close, closeup, computer, conditioner, coolant, cooler, cooling, duct, grate, gray, grey, grid, grill, grille, heat, home, hvac, industrial, industry, inlet, iron, isolations, lines, macro, metal, metallic, pattern, plate, powers, protect, shiny, silver, smooth, steel, strong, surface, system, technology, texture, textured, vent, ventilation,