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