The use of high purity water to produce high pressure steam provides {HEAD ~ protection} to {TAIL ~ the superposed turbine} from fouling and damage, thereby extending both its operating range and useful life 
to
The use of high purity water to produce high pressure steam provides { HEAD ~ protection } to { TAIL ~ the superposed turbine } from fouling and damage , thereby extending both its operating range and useful life
OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH