This gas stream or curtain may aid in shielding {HEAD ~ the spray formations} between {TAIL ~ adjacent nozzles} or may aid in compressing the spray pattern 
This gas stream or curtain may aid in shielding { HEAD ~ the spray formations } between { TAIL ~ adjacent nozzles } or may aid in compressing the spray pattern
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