大约在一千年前我国劳动人民已经创制了风车(又名扇车),目前它仍是农村广泛使用的一种清选工具,但长期以来结构上没有多少改进,效率比较低。曾建秋等同志在下乡劳动中发现了这个问题,他们运用风机设计理论分析了旧式风车的弊病,在大队党支部和贫下中农的支持与指导下进行了改革,获得显著效果,受到当地贫下中农的欢迎。这项改革各地可参考采用。在农村广阔的天地里,像风车改革这样有意义的课题很多,希望各科研、教学单位把你们在深入农村,开门办所、开门办学过程中,解决这些问题的经验与成果及时告诉我们,以便交流推广。——编者 About a thousand years ago our working people had already created a windmill (aka a motorbike). Currently, it is still a widely used clearing tool in rural areas. However, it has not been much improved in structure and has been inefficient for a long time. Comrade Zeng Jianqiu and other comrades found this problem in their countryside work. They used the theory of fan design to analyze the shortcomings of the old-style windmill and carried out reforms with the support and guidance of the party branch of the brigade and the poor and poor peasants. They achieved remarkable results and were well received by the poor middle peasants welcome. This reform can be used around the reference. In the vast rural areas, there are many topics of great significance like the reform of the windmill. We hope all scientific research and teaching units will inform us in time with the experience and achievements of you in going deep into the countryside, opening a door to running a school, and solving these problems so that Exchange and promotion. --editor