To cool {HEAD ~ the components} with {TAIL ~ compressor discharge air}, robs air which could otherwise be used for combustion and creates a less efficient gas turbine engine 
with
To cool { HEAD ~ the components } with { TAIL ~ compressor discharge air } , robs air which could otherwise be used for combustion and creates a less efficient gas turbine engine
OTH OTH HEAD 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 OTH OTH OTH OTH