Ключевые слова: balance, calm, civil, conservation, control, current, dam, design, dusk, dynamics, ecological, ecology, electricity, energy, engineering, environment, features, flood, flow, generation, hydraulics, hydroelectric, illumination, industrial, infrastructure, landscape, lighting, management, movement, natural, nature, night, outdoor, plans, power, reflections, release, renewable, reservoir, resource, river, scene, scenic, spillway, structure, sustainable, technology, tranquil, trees, twilight, water, waterway,