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北京农业工程大学承担的农牧渔业部的重大科研项目“拖拉机液压系统和元件的技术状况分析方法的研究”于1988年1日12日在北京通过鉴定。鉴定委员会主任由学部委员、国家机械委机械研究院总工程师雷天觉高级工程师担任。
Beijing University of Agriculture and Engineering undertakes a major scientific research project of the Ministry of Agriculture, Animal Husbandry and Fisheries “Tractor hydraulic system and components of the technical condition analysis method ” in 1988 on the 12th in Beijing passed the appraisal. Appraisal Committee Director by the academic committee, National Machinery Research Institute Chief Engineer Lei Tianyue senior engineer.