(2) Open classification and related terms should help to sort out the navigation classification of terms and facilitate readers to search and obtain more relevant content.
(3) The pictures of the entries should be closely matched with the entries, which can explain the theme and have high image quality.
(4) Reference materials are the direct source of the reference information quoted in the text of the entry, and the corresponding relationship should be given by using the angular scale function for verification.
(5) Extended reading is another source of information related to the theme of the entry, which can provide readers with an effective and extensible reading approach.