{TAIL ~ The electrode assembly} has an active electrode and, set back from the active electrode, a return electrode coated with {HEAD ~ an insulative dielectric layer} 
{ TAIL ~ The electrode assembly } has an active electrode and , set back from the active electrode , a return electrode coated with { HEAD ~ an insulative dielectric layer }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD