Ключевые слова: air, aircraft, airplane, aviation, blade, centrifugal, closeup, component, compressor, detail, energy, engine, engineer, engineering, equipment, expander, fan, force, gas, generator, hydro, impeller, industrial, industry, jet, machine, metal, metallic, motor, part, plane, power, pressure, propeller, pump, rotor, science, shape, steam, steel, suctioneye, technology, turbine, turbo, turbo fan, turbojet, vane, volute, water,