Yes, there should be two spaces at the end of the sentence (period, question mark and exclamation point) and one space after other punctuation marks. Slash symbols, currency symbols, asterisks and fractional symbols can be preceded by 1 spaces or 1 spaces.

Extended data:

abstract:

1. English abstract is a short article, which uses a written language that conforms to English grammar and provides a summary of the content of the paper. The content is basically the same as the Chinese abstract, but it is not necessary to be completely sentence by sentence.

2. English titles, abstracts and keywords form a page (1 page is enough), which is placed after the Chinese abstract page.

3. English fonts and line spacing: "Times New Roman" is used uniformly for "Western fonts", with 1.5 times line spacing.

4. English topic: Bold with the third word.

5. English abstract: "abstract" is capitalized, the fourth word is used, and it is bold.

The English abstract uses the fourth word to express the specific content.

6. English keywords: "keywords" In the top case, use the fourth word and make it bold.

References:

Baidu Encyclopedia-English Papers