The characteristics of applied research are: first, it has a specific practical purpose or application goal, which is embodied in determining the possible uses of basic research results or exploring new methods (principles) or new ways to achieve the predetermined goals. The second is to acquire new knowledge in the process of research around specific purposes or goals, and provide scientific basis for solving practical problems. Third, the research results generally only affect the limited scope of science and technology, which is special. For a specific field, problem or situation, the results are mainly scientific papers, monographs, principle models or invention patents. Generally speaking, the so-called applied research is to develop theory into a form of practical application.