2. The tab stop dialog box will pop up to clear the original tab stop.

3. Set a new left-aligned tab stop.

4. Set a new right-aligned tab stop.

5. Click the "OK" button after setting.

6. Return to the main interface of word and press Ctrl+Shift+S to open a new style dialog box named Formula, and click New to confirm.

7. At this point, the newly created formula style will appear in the style library.

8. Enter (Seq equ) in the main interface of word, and notice that there is a space between Seq and equ.

9. Select the contents in brackets and press Ctrl+F9 to convert them into domain codes (braces represent domain codes).

10. Right-click to select Update Domain, and the result is as shown in the figure.

1 1. Select the result just generated, including parentheses, and select Insert-Document Part-Save the selected content to the document part library.

12. The "New Building Block" dialog box pops up, named equ, and press enter to confirm.

13. Return to the main interface of word, enter two tab stops, as shown in the figure, insert a formula between the two tab stops, and finally enter equ.

14. Select equ and press F3. The result is shown in the figure.

15, and then repeat the step 13- 14, adding more formula numbers, and this is complete.