常压渣油 meaning in Chinese

long residue
long residuum

The development of atmospheric residuum hydrotreating technology
常压渣油加氢处理技术的研究开发
Two processing schemes for upgrading iranian atmospheric residue
伊朗常压渣油的两种加工工艺对比
Suspension bed hydrocracking of atmospheric residue from dagang oil field
大港常压渣油悬浮床加氢裂化反应
Commercial application of fzc series catalysts for residue atmospheric hydrotreating
系列常压渣油加氢处理催化剂的工业应用
Pilot test and commercial application of catalysts for res iduum hydrotreating in fixed bed
常压渣油加氢脱硫催化剂的开发研制

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