TOC is the abbreviation of TableofContent, while blurb is "introduction, publicity"? So if it is translated literally, I think it may be translated into "Introduction to Papers in Electronic Catalogue". The catalogues of many academic journals will also briefly introduce each paper in this issue. This introduction generally consists of two parts: pictures and text, and TOCblurb refers to the text part.

With the rapid development of the Internet, many periodicals are not printed on paper, but this part of the catalogue remains, and it just becomes an electronic catalogue (eTOC). It provides convenience for readers to understand the content of each paper when browsing periodicals online, and at the same time, it will focus on introducing this part of the text and pictures when promoting the paper.