The preferred embodiment of the invention or utility model is an important part of the specification, which is extremely important for the comprehensive disclosure, understanding and realization of the invention or utility model, and for supporting and interpreting the claims. Therefore, the specification should describe in detail the preferred embodiment of the invention or utility model that the applicant considers to be realized. When appropriate, examples should be given; If there are drawings, they shall be explained with reference to the drawings.
The preferred embodiment shall embody the technical scheme adopted in the application to solve the technical problems, and make a detailed description of the technical features supporting the claims.