Ключевые слова: architecture, background, board, bright, ceiling, construction, copy, daylight, design, ecology concept, economic, economy, electric, electrical, electricity, empty, energy, energy saver, environment, fixture, floor, fluorescent, hall, illumination, indoor, indoors, industrial, level, metal, pattern, perspective, power, railings, residential, roof, rural, save, shine, smoke, sporting hall, square, stage, suspended, technology, timber, wall, wood, wooden, wooden ceiling, workstation,