北京石油化工工程公司环保所
Beijing Petrochemical Engineering Company EPI
大庆石油化工工程公司
daqing petrochemical engineering co
公用工程
public engineering facilities
public utility
utility engineering
civil project
general facilities
utility
Utilities
hydrogen utility
the utility
公用工程换热网络
steam user and generator network
公用工程流程图
caloric equation of state
公用工程设计
utility engineering design
洛阳石油化工工程公司
Luoyang Petrochemical Engineering CO
LPEC
宁波市政公用工程建设监理公司
ningbo municipal engineering construction supervision company
建安工程费用
cost of construction and erection works
油田配套工程费用
cost of matching constructions of oil field development