主要阐述了研究目的、研究范围和研究方法三个方面。
Mainly introducing three aspects: the research purpose, range of research and the method of study.
第一部分，作为绪论首先提出了论文研究的目的、意义和范围。
As an introduction, the first part gives the aim, meaning and research field.
第一章为绪论，包括研究对象和范围、研究意义和目的、前人研究现状等。
The first Chapter is the introduction, including research object, research meaning and research current situation.
第一章为绪论，包括研究对象和范围、研究意义和目的、前人研究现状等。
The first Chapter is the introduction, including research object, research meaning and research current situation.
应用推荐