{TAIL ~ The surface length} of each of the stator teeth is greater than a sum of {HEAD ~ a stroke length} of the motor and an axial thickness of one of the magnets in the buried magnet system 
{ TAIL ~ The surface length } of each of the stator teeth is greater than a sum of { HEAD ~ a stroke length } of the motor and an axial thickness of one of the magnets in the buried magnet system
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH