Ключевые слова: architecture, beautiful, blue, boat, canal, city, clean, electric, energy, environment, equipment, flow, forest, green, hydraulic, hydraulic turbine, industrial, industry, lake, landmark, landscape, machine, motion, natural, nature, outdoor, oxygen, park, pond, power, river, scenic, sky, solar cell, solar power, summer, tool, tourism, travel, treatment, tree, turbine, vacation, view, waste, water, wave, wheel, wind,