短語詞組短語vacuum pyrolysis residue 真空熱解渣vacuum distillation residue 減壓渣油vacuum residue distillation system 減壓渣油系統(tǒng)oman vacuum residue 阿曼渣油vacuum residue desulfurization 渣油加氫脫硫vacuum residue constituents 減壓渣油組分pure vacuum residue 全減渣Liaohe vacuum residue 遼河減壓渣油high vacuum residue 高真空蒸餾殘渣vacuum residue fractions 減渣餾分 返回 vacuum residue