| dhl_dpDerivative of liquid specific enthalpy on the boundary between regions 4 and 3 or 1 w.r.t. pressure |  | 
| p | Type: Pressure (Pa) Description: Pressure | 
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| dh_dp | Type: DerEnthalpyByPressure (J·m·s²/kg²) Description: Specific enthalpy derivative w.r.t. pressure | 
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