Before revision: Mounting of a steam turbine produced by Siemens, Germany Aircraft engine, in this case a Boeing 777 engine Turbomachinery , in mechanical engineering, describes machines that transfer energy between a rotor and a fluid, including both turbines and compressors.
After revision: Mounting of a steam turbine produced by Siemens, Germany Aircraft engine, in this case a Boeing 777 engine TurbomachineFile:DampfturbineMontage01.jpg| , in mechanical engineering, describes machines that transfer energy between a rotor and a fluid, including both turbines and compressors.