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根据一机部基础件质量攻关和标准化工作计划,由常德建筑机械研究所和天津工程机械研究所负责的工程机械用“回转支承系列标准”,自从1975年10月由工程机械行业的13个单位参加的工作小组成立以来,进行了大量的调查研究,分析了国内外情况,制定了系列标准草案。草案经过二轮的广泛征求意见后,于1976年7月在天津工程机械研究所召开了定稿会议,完成了定稿工作,并已作为部
According to the Quality Assurance and Standardization Work Plan for the Basic Parts of an Aircraft Department, the “Slewing Bearing Series Standards” for construction machinery, which are under the responsibility of the Changde Institute of Construction Machinery and the Tianjin Institute of Construction Machinery, have been used by 13 units of the construction machinery industry since October 1975. Since the establishment of the working group, a large number of investigations and researches have been carried out, and the situation at home and abroad has been analyzed and a series of draft standards have been formulated. After two rounds of extensive consultation, the draft held a finalization meeting in Tianjin Institute of Construction Machinery in July 1976, and completed the finalization work.