Ключевые слова: arc, blue, bus, cable, car, clear, color, construction, curve, danger, day, electricity, electromagnetic, energy, equipment, frame, fuel, generation, high, image, in, iron, light, lighting, line, metal, no, platform, plug, power, railroad, resistance, row, single, sky, station, steel, strap, street, sunbeam, supply, suspension, tall, telephone, track, train, tramline, tramway, transformer, transportation, voltage, warehouse, wire,