科技英语翻译定.ppt

A Brief Introduction to EST The Definition of EST (English for Science Technology) EST (English for Science Technology or Technical English or Scientific English) is a special language variety widely used in the fields of science and technology. It’s believed that it first came to being in the 1950s along with the rapid development of science and technology, and it many researchers and scholars began to conduct investigation of this common features of this special genre including reading comprehension, writing and even translation. 科技英语(English for Science and Technology，简称EST)是从事科学技术活动时所使用的英语，是英语的一种变体(科技文体)。 科技英语自70年代以来引起了人们的广泛关注和研究，目前已发展成为一种重要的英语语体。 本节所讨论的科技英语主要指描述、探讨自然科学各专业的著作、论文、实验报告，科技实用手段(包括仪器、仪表、机械、工具等)的结构描述和操作说明等。 Example 1 Since the joint gap between a piston and a cylinder has great influence on the service life of an engine, and the primary factor influencing the joint gap is the deformation of a piston under working condition, it is important to show up the actual deformation of piston and for this purpose the finite element has been widely applied to analyze it numerically in China. 活塞与气缸的配合间隙，对于发动机的使用寿命影响很大，影响配合间隙的主要因素是活塞在工作状态下的变形。为了真实反映活塞变形情况，国内已广泛采用有限元法进行数值分析。 Example 2 The action of air on an airplane in flight at low altitude is greater than that at high altitude. 空气对于低空飞行飞机的作用力大于高空飞行的飞机。 Example 3 Pictures can be stored in the camera’s internal memory (about 14 MB) or on the Secure Digital (SD) memory card. If no memory card has been inserted in the camera, pictures will be stored in the memory, and if the camera contains a memory card, then pictures will automatically be stored on the card. 2. Stylistic Features of EST 2.1. Lexical level 1) . Numerous Technical Terms Technical terms refer to those lexicons specialized in a certain subject or area, with which laymen are unfamiliar, e.g. cryogeneics（低温学）, noepinephine（新肾上腺素） Characteristics: A. Lengthy: mostly containing roots or affixes originating from Latin, Greek and French, etc. e.