The portion of the air outlet opening around the nozzle should have a cross sectional area in {HEAD ~ the range} of {TAIL ~ 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 2.00 millimeters 
The portion of the air outlet opening around the nozzle should have a cross sectional area in { HEAD ~ the range } of { TAIL ~ 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 2.00 millimeters
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL 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