{HEAD ~ d) available energy consuming means} for transferring {TAIL ~ a fluid property} from said first fluid stream to said second fluid stream; and 
for transferring
{ HEAD ~ d ) available energy consuming means } for transferring { TAIL ~ a fluid property } from said first fluid stream to said second fluid stream ; and
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH