said hole is covered by {HEAD ~ a sealing label} comprising a metal thin film and {TAIL ~ an adhesive layer} 
comprising
said hole is covered by { HEAD ~ a sealing label } comprising a metal thin film and { TAIL ~ an adhesive layer }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL