A memory stores {HEAD ~ a predetermined relationship} between the possible offset and {TAIL ~ a parameter} which controls the application of heat 
A memory stores { HEAD ~ a predetermined relationship } between the possible offset and { TAIL ~ a parameter } which controls the application of heat
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH