Ключевые слова: aerofoil, air, blades, circle, closeup, electricity, energy, engine, engineering, extreme, factory, fan, gas, generator, heavy, highspeed, industrial, industry, jet, large, layer, machine, machinery, manufacturing, metal, oxygen, part, plant, power, powerful, precision, pressure, radial, rotary, rotate, rotor, round, spin, stack, steam, steel, system, technology, turbine, turbine blade, turbine disc, turbo, twist, wheel, wind,