延长石油将产业链延伸至下游,尽管面临不小的挑战,但也具备一定的优势,发展空间很大,在我国未来油品供应的格局中,很有可能成为重要一极。 Extending the oil industry to extend the industrial chain to the downstream. Although it faces not small challenges, it also has certain advantages and great room for development. It is very likely to become an important pole in the future pattern of oil supply in our country.