石油化工园区
petroleum chemical industrial park
petrochemical industrial park
石油化工用阀
valves used for oil and chemical industry
江苏石油化工学院
Jiangsu Institute of Petrochemical Technology
jiangsu petrochemical college
basic curriculum department
辽宁石油化工大学石油化工学院
petroleum chemical institute
Faculty of Petrochemical Engineering
approximate unit
Liaoning University of Petroleum Chemical Technology
College of Petroleum Chemical Technology
Liaoning University of Petroleum and Chemical Technology
School of Petrochemical Techhnology
Liaoning University of Pertoleum Chemical
liaoning shihua university
辽宁石油化工大学学报
Journal of Liaoning University of Petroleum & Chemical Technology
石油化工消防
petrochemical fire protection
石油化工腐蚀与防护
Corrosion & Protection in Petrochemical Industry
石油化工环境保护
Environment Protection in Petrochemical Industry
石油化工自动化
Automation in Petro-Chemical Industry
石油化工工程
petrochemical project
petrochemical engineering