Ключевые слова: axis, blade, cloud, clouds, cylinder, ecology, energy, environment, equipment, gear, generation, gray, hydroelectric, hydrothermal, industrial, industry, iron, machine, mechanics, mechanism, metal, metallic, object, power, power plant, prop, propel, propeller, rotate, rotor, sky, spin, steam, steam turbine, steel, strength, technological, technology, turbine, vane, white, wing,