遵照伟大领袖毛主席关于“水利是农业的命脉,我们也应予以极大的注意”的教导,黑龙江省机械工业研究所为支援农业水利建设,组成了一个支农三结合小组,到肇东县宋站公社,和那里的工人、贫下中农共同研制双循环钻井机。在公社党委的领导下,经过十个月的努力,于七六年七月完成了双循环“550”型钻井机的设计、试制和试验任务,现已正式投入钻井生产。 Following the guidance of Chairman Mao, the great leader, on “water conservancy is the lifeblood of agriculture and we should also pay great attention to it.” Heilongjiang Provincial Institute of Machinery Industry, in support of agricultural and water conservancy, has formed a combination of agriculture, Song County commune, East County, and where workers, poor peasants jointly developed double-circulation drilling machine. Under the leadership of the commune party committee, after completing 10 months of hard work, the design, trial manufacture and test of the double cycle “550” drilling rig was completed in July 1976 and drilling has been formally put into operation.