In addition, {HEAD ~ the method} includes re injecting {TAIL ~ low density gas} from a hole penetrating the hermetically sealed disk enclosure from an exterior of the disk drive to an interior of the disk drive 
includes re injecting
In addition , { HEAD ~ the method } includes re injecting { TAIL ~ low density gas } from a hole penetrating the hermetically sealed disk enclosure from an exterior of the disk drive to an interior of the disk drive
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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 OTH OTH OTH OTH OTH