{HEAD ~ The rotary machine} comprises a driven rotor and {TAIL ~ an electric motor} having a stator and a driving rotor 
{ HEAD ~ The rotary machine } comprises a driven rotor and { TAIL ~ an electric motor } having a stator and a driving rotor
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH