{HEAD ~ The multilayer circuit board} has contact areas at positions corresponding to the openings in {TAIL ~ the insulating board} 
{ HEAD ~ The multilayer circuit board } has contact areas at positions corresponding to the openings in { TAIL ~ the insulating board }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL