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