Ключевые слова: airliner, airplane, alternative, alternative energy, aviation, bahn, blue, bussing, cell, city, clean, conductor, draw, driving, eco, energy, environment, environmentally friendly, express train, flight, fuel, fuel cell, gas, generative ai, h2, hydrogen, industry, locomotive, low, metro, plane, power, public, rail, railroad, railway, renewable, sustainable, technology, train, tram, tramway, transport, transportation, travel, urban, vehicle, zero, zero emissions,