The portion of the air outlet {TAIL ~ opening} around the nozzle should have a cross sectional area in the range of from 5 to 15 square millimeters and should be annular in shape with a generally uniform radius in the range of from 0.65 to {HEAD ~ 2.00 millimeters} 
The portion of the air outlet { TAIL ~ opening } around the nozzle should have a cross sectional area in the range of from 5 to 15 square millimeters and should be annular in shape with a generally uniform radius in the range of from 0.65 to { HEAD ~ 2.00 millimeters }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD