结构族 meaning in Chinese

structural group

Test method for calculation of carbon distribution and strutural group analysis of petroleum oils by the n - d - m method
石油馏分的碳分布和结构族组成计算方法n - d - m法
Abstract : the fraction compositions , group compositions and structure compositions of seve n catalytic stocks were determined by means of vacuum distillation , mass spectrum , element analysis and molecular mass measurement
文摘:采用减压蒸馏、质谱分析、元素分析和分子质量测定对辽河原油的7种催化原料油进行了馏分组成、族组成和结构族组成的分析。