湿空气的熵 S(T,p S(T,p) ms, t,pa)+myst, p =S2(T,pn)+d·s、(T,p) kJ/kg干空气K湿空气的熵 v v v v v ( , ) ( , ) ( , ) ( , ) ( , ) ( , ) a a a a a a a S T p m s T p m s T p s T p m m s T p d s T p + = = = +  kJ/kg干空气.K