This term is defined in ECSS-E-ST-35C Rev. 1 as
ratio of the time integral of the product of throat area and total pressure (at the throat) and the propellants ejected mass during the same time interval
This term is defined in ECSS-E-ST-35C Rev. 1 as
ratio of the time integral of the product of throat area and total pressure (at the throat) and the propellants ejected mass during the same time interval