2. However, complex technical solutions may have long sentences. In order to understand such sentences, it is often necessary to break sentences, and it is best to use commas between them, and then use semicolons at the end. The advantage of this is that if the examiner says that the technical scheme defined by a single sentence is not complete enough and the scope is too wide, you can advocate combining all the sentences before the semicolon and understanding the technical points here as a whole. The semicolon has actually played a full stop at this moment, but it does not conflict with the relevant provisions of the Patent Examination Guide.