In a disclosed embodiment, the temperature in the region of the mandrel is measured, and {HEAD ~ the moving} of the receptor fins is in {TAIL ~ accordance} with the measured temperature 
is in
In a disclosed embodiment , the temperature in the region of the mandrel is measured , and { HEAD ~ the moving } of the receptor fins is in { TAIL ~ accordance } with the measured temperature
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH