These elements are coated with another insulating layer which has {TAIL ~ bubble propagation patterns}, formed from {HEAD ~ high magnetic permeability material} 
These elements are coated with another insulating layer which has { TAIL ~ bubble propagation patterns } , formed from { HEAD ~ high magnetic permeability material }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD