Ключевые слова: abstract, air, appliance, back, backdrop, background, black, board, circle, circular, complex, compressor, con, conceal, concealed, concept, conceptual, conditioner, design, dot, electric, electrical, fan, hidden, hide, panel, pattern, perspective, plank, round, shape, technology, ventilate, ventilation, ventilator, wall, wallpaper, way, white, wood, wooden,