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