{TAIL ~ An electric coil} 2 is disposed on the outside while {HEAD ~ a rotor} is disposed on the inside, assisting in heating dissipation 
{ TAIL ~ An electric coil } 2 is disposed on the outside while { HEAD ~ a rotor } is disposed on the inside , assisting in heating dissipation
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH