一、概况云南省建五公司预制厂于1980年2月建成用手势控制的混凝土自动搅拌站。该站土建以外的部分由云南省建筑科研所自行构思和设计,经二年多时间的使用,效果良好。搅拌站侧立面如图1所示,平面布置如 I. Overview Yunnan Jianwu Prefabricated Factory built a gesture-controlled automatic concrete mixing plant in February 1980. The non-civil part of the station was conceived and designed by the Yunnan Institute of Construction Science and Technology. After more than two years of use, the results were good. The side elevation of the mixing station is shown in Figure 1, and the layout is as