水利部科技局下达的“28马力拖拉机为动力机的中型喷灌机完善化及其为枢纽的移动管道系统配套定型设计”(简称:“人工移管式中型喷灌机”)科研项目,由北京农机学院、华北水电学院及黑龙江水科所等单位联合研制,经两年努力,已完成任务,于1981年11月27日至11月29日在浙江新昌召开评审 Ministry of Water Conservancy Ministry of Science and Technology issued a “28 horsepower tractors for the power of medium-sized irrigation machine improvement and its hub for the mobile pipe system supporting stereotypes design” (referred to as: “artificial pipe transfer medium-sized irrigation machine”) scientific research project by the Beijing Agricultural College, North China Institute of Hydropower and Heilongjiang Institute of Water and other units jointly developed, after two years of hard work, has completed the task, in November 27, 1981 to November 29 in Zhejiang Xinchang held a review