Title: Small 4 in black.

Title: Small size 4 is bold.

Title: Small Four Bold

Text: Xiao No.4 Song Style, 1.5 times line spacing.

Page number: Small 5th Song Dynasty

Numbers and letters: Times New Roman

The title and abstract are separated by 2 lines, and the "abstract" is small and thick, separated by 2 characters and centered.

The keyword font is a small four-letter font, which is bold. Two character spaces are used as spaces between keywords, and the last keyword does not use punctuation.

Preface or introduction, conclusion, references, etc. : Small size 4 is bold, bold and centered.