大庆、胜利和华北原油窄馏分在加压条件下气-液相平衡常数的测试及数学模型的考察

• DETERMINATION OF THE VAPOUR-LIQUTD EQUILIBRIUM CONSTANTS OF NARROW FRAC(?)NS OF DAQING,SHENGLI AND HUABEI CRUDE OILS AT HIGH PRESSURE AND VERIFICATION OF MATHEMATICAL MODELS