维里系数间的关系 B =1+ RT B=BRT C=BBRT+CR2T2 Dnm BRT BBRT+CR2T2 Z=1+ V BCRT+2BC R2T2+DRT3维里系数间的关系 ' ' 2 ' 3 1 p v Z B p C p D p R T = = + + + +  2 3 1 pv B C D Z RT v v v = = + + + +  2 3 RT BRT CRT p v v v = + + +  ' 2 3 2 ' 2 3 1 RT BRT CRT Z B v v v RT BRT CRT C v v v   = + + + +        + + + +  +      ' ' ' 2 2 2 ' ' 2 2 ' 3 3 3 1 2 B RT B BRT C R T Z v v B CRT BC R T D R T v + = + + + + + +  ' B B RT = ' ' 2 2 C B BRT C R T = +