The power generation process 4 wherein {TAIL ~ the stream} of {HEAD ~ steam} is passed through a body of oil 
The power generation process 4 wherein { TAIL ~ the stream } of { HEAD ~ steam } is passed through a body of oil
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH