A method for re injecting {HEAD ~ low density gas} into {TAIL ~ a disk drive} including a hermetically sealed disk enclosure 
A method for re injecting { HEAD ~ low density gas } into { TAIL ~ a disk drive } including a hermetically sealed disk enclosure
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH