This is an important advantage, because the power output of the gas turbine 2 varies in {HEAD ~ dependence} upon {TAIL ~ the gas turbine compressor pressure ratio} 
upon
This is an important advantage , because the power output of the gas turbine 2 varies in { HEAD ~ dependence } upon { TAIL ~ the gas turbine compressor pressure ratio }
OTH OTH OTH OTH OTH 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 TAIL TAIL TAIL