BPR Bypass ratio
CO Carbon monoxid
CO2 Carbon dioxid
Engine-IMG Engine Industry Management Group (sub-body of the ASD – IMG4)
HP High  presssure
IP Intermediate pressure
IPC Intermediate pressure compressor
IPT Intermediate pressure turbine
ITD Intermediate turbine duct
NOx Oxides of nitrogen
OPR Overall pressure ratio
TRL Technology readiness level
UHC Unburned hydro carbons
UHPR Ultra-high pressure-ratio


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