The steam boiler operates at a pressure above that needed for {HEAD ~ consumption} in {TAIL ~ the process chamber} and uses highly purified water 
in
The steam boiler operates at a pressure above that needed for { HEAD ~ consumption } in { TAIL ~ the process chamber } and uses highly purified water
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH