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