The high-tech water jet cutting was developed in the 1970s and 1980s. It has been widely used in industry, medicine, foodstuff processing, and so on. This paper reviewed the application research and development of the water jet cutting technology and put forward a novel notion of water jet removing weeds. Compared with traditional methods of removing weeds, the technology of water jet removing weeds has the advantages of no pollution, clean, less dust, no abrasion for sword and...