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DOI：DOI：Sequential Coding, Continuous Coding, Sequential Number, References, Arabic numerals, Labeling Format, Markup, Reference,

DOI：DOI：

When using the sequential coding system, the cited documents are continuously encoded with Arabic numerals according to the order in which they appear in the paper, and the serial number is placed in square brackets, and the serial number is used as the upper corner mark according to the specific situation, and the OR is used as a component of the statement. 1. Mark where references are made. This mark is an Arabic numeral enclosed in square brackets, where the Arabic numerals are the sequence number of the document. For example, the mark [25] is added where the 25th document is cited.