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为了加速农林植保工作的机械化,充分发挥目前农村中普遍使用的手扶拖拉机的一机多用作用。我场森保组的工人、技术人员发扬敢想、敢干的革命精神,在自力更生的基础上,自行设计、施工,经过反复分析、研究和改制,苦战十个月,于一九七八年春初步研制成功一种与“东风——12型”手扶拖拉机相配套的农用自走式弥雾喷粉多用机（照片1、2）。 该机具的工作原理是利用拖拉机的动力,带动风机叶轮,应用气流输粉,气压输液,进行喷粉或弥雾喷液,还可以进行喷湿粉的作业。 主要技术参数:
In order to speed up the mechanization of agriculture and forestry plant protection, give full play to the widespread use of tractors in rural areas, one machine with multiple functions. Our workers and technicians in Senbao Group carry forward the revolutionary spirit of daring to think and dare to do their own work, and design and construct on their own on the basis of self-reliance. After repeated analysis, research and restructuring, we worked hard for 10 months and started preliminary work in the spring of 1978 The successful development of a “Dongfeng - 12” walking tractors matching agricultural self-propelled misting dust multipurpose machine (Photos 1, 2). The working principle of the machine is to use the power of the tractor to drive the impeller of the fan, to apply air powder and air pressure infusion, to spray powder or misting spray, and to spray wet powder. The main technical parameters: