Alternatively, or in addition, {HEAD ~ the storage medium} may be provided with {TAIL ~ repeaters} or other amplifying means which compensate for any propagation losses 
provided with
Alternatively , or in addition , { HEAD ~ the storage medium } may be provided with { TAIL ~ repeaters } or other amplifying means which compensate for any propagation losses
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH