"gas/energiforhold (GER)" For dobbeltbrændstofmotorer, forholdet (udtrykt i procent) mellem energiindholdet i det gasformige brændstof [1] i forhold til energiindholdet i begge brændstoffer (diesel og gas).
"Gas Energy Ratio (GER)" means in case of a dual-fuel engine the ratio (expressed as a percentage) of the energy content of the gaseous fuel [1] over the energy content of both fuels (diesel and gaseous).