{HEAD ~ The discharge energy} applied to {TAIL ~ the medium} causes an expansion of the medium, which in turn causes an expansion of the sealed container 
applied to
{ HEAD ~ The discharge energy } applied to { TAIL ~ the medium } causes an expansion of the medium , which in turn causes an expansion of the sealed container
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH