WOLFRAM SYSTEM MODELER
    h3ab_pRegion 3 a b boundary for pressure/enthalpy  | 
     | 

SystemModel["Modelica.Media.Water.IF97_Utilities.BaseIF97.Basic.h3ab_p"]

This information is part of the Modelica Standard Library maintained by the Modelica Association.
Equation number 1 from:
| p | 
         Type: Pressure (Pa) Description: Pressure  | 
    
|---|
| h | 
         Type: SpecificEnthalpy (J/kg) Description: Enthalpy  | 
    
|---|