This action prevents {HEAD ~ a decrease} in {TAIL ~ engine performance} in that it provides better fuel distribution at the higher bypass ratios 
in
This action prevents { HEAD ~ a decrease } in { TAIL ~ engine performance } in that it provides better fuel distribution at the higher bypass ratios
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH