石油提炼 meaning in Chinese

petroleum extraction
petroleum refining

Petroleum refining and related industries
石油提炼及有关工业
Ltd , , established for decade , collect scientificresearch , develop , produce , sell in integrative pluralistic enterprises . the subsidiary has been engaged in the exploitation of petroleum , natural gas , petroleum refining and chemical products of refined petroleum research and develop and produce the oil product all the time
公司一直从事石油、天然气的开采，石油提炼、精制石油化工产品，研发与生产石油产品及产品终端分销等业务领域。