I don't use WPS, but I think the principle should be the same. The reason for the dislocation is that words and numbers occupy different positions. There are two ways:

1, add a space before "1 10KV".

2. Select "1 10" and select the same font as the text (if the text is Song Dynasty, select "1 10" and then select Song Dynasty).

Note: If the table of contents is generated automatically, and the table of contents may change frequently, it will be changed in the corresponding title in the body.

I don't have WPS here, so I can't test it. If not, try to make the font of that space smaller, or choose text-format-font, and try using character spacing or character scaling.