A small synchronous motor with {HEAD ~ high reliability} so devised that transition from start operation to {TAIL ~ synchronous operation} is ensured 
A small synchronous motor with { HEAD ~ high reliability } so devised that transition from start operation to { TAIL ~ synchronous operation } is ensured
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH