2. The titles of scientific papers at all levels can also be coded continuously with Arabic numerals, with a dot (. ) and there is no dot after the last number. Such as "1", "1.2", "1.2. 1" and so on. The serial numbers of titles at all levels are arranged in the upper left box, and the titles are arranged with a space after the last serial number. For example, "measurement method" is the title of article 2 in section 3 of chapter 5, which is "measurement method".
3. Note: The titles of paragraphs at the same level should be consistent, and the numbers at the next level should be consistent. If there are fewer levels, you can omit some serial numbers in parentheses.
4. Serial numbers of drawings, tables, formulas, formulas, etc. The serial number of the figure, table, formula, formula, etc. in the text. Arabic numerals shall be sequentially arranged in the text, and their labeling forms shall be easy to distinguish from each other, such as "Figure 1, Table 2, Formula (5)"; Long research reports can also be numbered in the order of chapters (articles), such as "Figure 2. 1, Table 4.2, Formula (3.3)", in which the former number indicates the serial number of chapters (articles) and the latter number indicates the serial number of charts and formulas in this chapter.