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在批林批孔运动推动下,胜利油田的采油和科研战线的广大职工,根据毛主席“独立自主、自力更生”的教导,反复实践不断改进,试制成功了链条抽油机。现将链条抽
Driven by the pro-Lin Pok Kong Campaign, the vast majority of workers and staff in the field of oil production and scientific research in Shengli Oilfield repeated the practice and continuous improvement according to Chairman Mao’s “independent and self-reliance” teaching, and successfully piloted the chain pumping unit. Now the chain pumping