.TILMedia.BaseClasses.PartialVLEFluidFunctions.vapourMassFraction_pTxin .TILMedia.BaseClasses.PartialVLEFluidFunctions.vapourMassFraction_pTxinpartial function vapourMassFraction_pTxin = TILMedia.BaseClasses.PartialVLEFluidFunctionPrototypes.vapourMassFraction_pTxin;