This includes thermal barrier protection from {HEAD ~ excessive heat} caused by {TAIL ~ steam} and prevents any material from solidifying on the external surface of the inner nozzle 
caused by
This includes thermal barrier protection from { HEAD ~ excessive heat } caused by { TAIL ~ steam } and prevents any material from solidifying on the external surface of the inner nozzle
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH