Ключевые слова: arrow, background, bill, black, buildings, closeup, cold, conservation, construction, consumption, cube, delivery, device, dirty, energy, engineering, equipment, factory, flow, green, hot, industrial, industry, instrument, liquid, machine, measure, measurement, metal, meters, needle, new, number, object, power, reading, round, scale, service, shot, splash, station, steel, supply, system, technology, tool, two, water,