馏分物 meaning in Chinese

fraction

05 . 01 test method for hydrogen in petroleum fractions
石油馏分物氢含量测试方法
Methods of test for petroleum and its products - determination of polycyclic aromatics in unused lubricating base oils and asphaltene free petroleum fractions - dimethyl sulphoxide extraction refractive index method
石油和石油产品试验方法.第102部分:未用的润滑基油和不含沥青烯的石油馏分物中多环芳香族环烃的测定.二甲硫析取物折射指数法