摘要
简要介绍了科技论文的结构层次、各层次内容的意义和撰写原则；重点从词汇、语法和修辞手段的运用等几个方面谈了在科技论文的语言表达上应注意的问题．
This anticle simply introduced the layer of structure about scientific thesis and the meaning of the content of each layer and the principle of writting. The problems that should be pay aftention to in the language express of the scientific thesis were talked about especially from some aspects such as the application of vocabulany and grammar and rhetorical device etc.
关键词
科技论文
结构
语言
表达
质量
Scientific thesis
Structure
Language
Express
Quality
