Web石化信息系统
petrochemical information system
八钢－石化隐伏断裂
bagang-shihua hidden fault
白云石化
DOLOMIZATION
Dolomitization
dolomitize
ammonia removal treatment
dolomite
dolomitation
大港石化公司
dagang petrochemical company
大连石化
PetroChina Dalian Petrochemical Company
大连石化公司
dalian petrochemical company
大连石化公司安全环保处监测站
Department of Safety and Environment Protection
dalian petrochemical company
大型石化联合装置
Large-scale petrochemical complex
大亚湾石化区
daya bay petrochemical zone
当代石油石化
petroleum & petrochemical today