随着社会的进步,科技的发展以及中国与世界其它各国之间交流的日益频繁,翻译领域的分工越来越细,由此应运而生的科技翻译这一领域也愈发受到众多学者的重视与探讨。卡特弗德以韩礼德的“阶和范畴语法”为母论,在此基础上提出了翻译转换理论。本文将结合卡特弗德对翻译转换的具体分类,分析其在科技翻译中的应用。 With the progress of society, the development of science and technology and the increasingly frequent exchanges between China and the rest of the world, the division of labor in the field of translation is getting more and more elaborate. As a result, the field of translation of science and technology has become increasingly valued by many scholars And explore. Based on the “order and category grammar” of Halliday, Catford puts forward the theory of translation and conversion. This article will combine Catford’s translation of the specific classification, analysis of its application in science and technology translation.