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到今年9月26日,大庆油田将整整走过50年。历经半个世纪风雨的大庆会战优良传统,历久弥新,并在科学发展实践中焕
September 26 this year, Daqing Oilfield will go through 50 years. After half a century of festivals and celebrations of the great tradition of the Qing Dynasty, a new era, and in the practice of scientific development Hwan