Sprinkler irrigation is one of the key technologies in the development of water-saving irrigation. New equipment is an important guarantee to popularize sprinkler irrigation. A complete fluidic sprinkler, a new type of water-saving product, was originally invented in China. This product depends on Coanda effect theory to accomplish the functions of direct spraying, stepping, and reversing. We own the intellectual property for this product and for several correlative patents. A series of complete fluidic sprinklers and other water-saving products have been developed by relying on several...