投稿要求里，有这么一段话大概是什么意思

投稿要求里，有这么一段话大概是什么意思

Table of Contents Graphic
A graphic must be included with each manuscript for the Table of Contents (TOC). This graphic should capture the reader’s attention and, in conjunction with the manuscript title, should give the reader a quick visual impression of the essence of the paper without providing specific results. The TOC graphic should be in the form of a structure, graph, drawing, SEM/TEM photograph, or reaction scheme. Color is acceptable and will be free of charge upon approval of the Editor. The author must submit a graphic in the actual size to be used for the TOC that will fit in an area 1.375 in. high and 3.5 in. wide (3.6 cm × 8.9 cm). Larger images will be reduced to
fit within those dimensions. Type size of labels, formulas, or numbers within the graphic must be legible. Tables or spectra are not acceptable. Provide the TOC graphic titled for “table of contents only” upon submission of the paper as the last page of the manuscript.

就是让你写一个东西，对你的文章做一个简单的介绍，能引人眼球，一般配一副图片。
这个东西一般出现在当期论文集的前面（目录）。包含题目 作者 页码 衣服图片 以及文章的简介。