现代农药自问世半个多世纪以来,为人类的社会生产与发展起到了不可低估的作用。笔者也从事过农药生产,但是在接触一些企业生产的产品,尤其是乳油产品时,遗憾地发现一些产品或多或少地有沉淀的现象,这就为了其销售与宣传人为地设置了一些障碍。因此,如何有效地防止产品沉淀,就成了 Since the advent of modern pesticides for more than half a century, it has played a role that can not be underestimated for the social production and development of mankind. I also worked on pesticide production but found some products more or less precipitated when they came into contact with some products produced by enterprises, especially EC products, which set some handicaps for their sales and promotion . Therefore, how to effectively prevent product precipitation, it has become