本文从术语的功能角度出发,研究职业言语(篇章)中术语的功能。如同语言与言语是二元对立的一样,术语的功能与行使功能也是二元对立的。术语系统是一个动态发展的系统,术语在使用过程中会呈现出种种变异的特征。因此,分析术语在篇章中如何行使其功能,具有哪些使用特点,会使我们更深入地了解术语的本质。 In this paper, from the functional perspective of the term, the function of the term in occupational speech (chapter) is studied. Just as language and speech are dualistic, the function of terminology and the function of exercising are also dualistic. The terminology system is a dynamically developing system, and terms are characterized by various variations during use. Therefore, analyzing how terminology performs its functions in texts and which features are used will give us a deeper understanding of the nature of terminology.