a sensory subsystem including {HEAD ~ means} to convey to {TAIL ~ the operator} of the master subsystem in a natural way other memory responses of the remote environment in which extravehicular activity is to be performed 
to convey to
a sensory subsystem including { HEAD ~ means } to convey to { TAIL ~ the operator } of the master subsystem in a natural way other memory responses of the remote environment in which extravehicular activity is to be performed
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH