引言(或称前言),作为一篇科技论文的开场白,一般以简单概括的语言,综述前人研究的历史与研究现状,以及作者需要解决的问题、技术方案的选择等。切忌与摘要相同,且不要详述教科书上或同行熟知的内容,避免自我评价性的语言,如“填补国内外空白”、“有很高的学术价值”、“首次” The introduction (or foreword), as a scientific essay, begins with a general summary of the history and research status of the predecessor’s research, as well as the author’s problems to be solved and the choice of technical solutions. Avoid the same as the abstract, and do not detail the textbooks or peers well-known content, to avoid self-evaluation of the language, such as “to fill gaps in domestic and foreign,” “has a high academic value,” “for the first time”