本书对课文做了适当的调整,在保留重要语法和关键词汇的同时,将第1版教材中篇幅较大的课文进行了缩减(一般不超过半页),并列出了更多的生词和注释。在每篇课文的课后练习中增加了“Words Study”和“Language study”两部分,以帮助学生掌握简单的构词法以及用法含义较灵活的单词,理解常见语法(比如被动语态,定语从句等)。每篇课文给出了译文,以帮助学生正确理解课文内容,也便于教师教学。
本书每课的参考课时为2~4课时。学生在课堂上除了课文的学习,还可以在教师的安排下完成部分课后练习,以巩固所学知识,提高课堂学习效果;每篇课文后面的补充材料可供学有余力的学生阅读,教师也可选择其中的部分内容作为课后作业进行布置。
本书精选了14篇现代数控加工技术方面的文章,用原汁原味的英语,全面、系统地介绍了数控领域的最新技术和知识。所选文章图文并茂,每篇课文后面配有课后习题和课文译文,可帮助读者有效提高英语阅读水平。本书配有电子教案和习题答案,读者可到人民邮电出版社网站(www.ptpress.com.cn/download)进行下载。
本书对数控技术专业英语中的高频词汇和语法做了详细的分析和讲解,通过本书的学习,读者可以在字典的帮助下读懂一般的数控类英文文献。
本书可作为高职高专院校数控专业的英语教材,也可以作为工程技术人员的自学参考书。
Unit 1 Introduction to Computer Numerical Control Manufacturing
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading The History of Numerical Control
Unit 2 The Axis System
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Relative Tool Movement
Unit 3 Points and Coordinates
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Coordinates and Significant Points
Unit 4 Machine movements and control
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Contouring
Unit 5 Mathematics for CNC Programming
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Trigonometry
Unit 6 Tooling for CNC
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Tooling Systems
Unit 7 Program Planning
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Initial Information
Unit 8 Word Address Programming
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Preparatory Commands
Unit 9 Basic Programming
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Circular Interpolation
Unit 10 Program Flow
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Looping Logic in Programs
Unit 11 Tool Length Offsets and Zero Presets
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Setting Up Offsets
Unit 12 Tool Radius Compensation
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Automatic Tool Radius Compensation
Unit 13 CAD and CAM
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading What is CAD/CAM Software?
Unit 14 Beyond CNC Machining
Reading Target
Text
Words Study
Language Study
Translation
Supplementary Reading Operational Strategies within CIM
Vocabulary
参考文献