The nozzle and speed are so selected as to cause an abrupt temperature drop in {HEAD ~ the flow medium} within {TAIL ~ the nozzle} which causes the melt to solidify into fibers 
within
The nozzle and speed are so selected as to cause an abrupt temperature drop in { HEAD ~ the flow medium } within { TAIL ~ the nozzle } which causes the melt to solidify into fibers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH