Next, a controller receives a signal that indicates the actual temperature of the heating element along with {HEAD ~ an indication} of {TAIL ~ the desired temperature} 
of
Next , a controller receives a signal that indicates the actual temperature of the heating element along with { HEAD ~ an indication } of { TAIL ~ the desired temperature }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL