wherein {HEAD ~ the imbedded electrode} is formed in {TAIL ~ the shape} of a curvilinear winding or in the shape of a curvilinear winding with reversals in direction, 
is formed in
wherein { HEAD ~ the imbedded electrode } is formed in { TAIL ~ the shape } of a curvilinear winding or in the shape of a curvilinear winding with reversals in direction ,
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH