Unit 1 The History of CNC and NC Development 1
Dialogue 1
Text The History of CNC and NC Development 2
Supplementary Reading The Applications of NC/CNC 5
Translating Skill（1）科技英语翻译概述 8
Unit 2 NC Operation 14
Dialogue 14
Text Describing the Operation Panel 14
Supplementary Reading Screen Reading 24
Translating Skill（2）科技文章的特点 27
Unit 3 NC Programming 32
Dialogue 32
Text Coordinate System for NC Machines 32
Supplementary Reading Basic Requirement of NC Machine Control 36
Translating Skill（3）词义的选择和引申 41
Dialogue 47
Unit 4 Safety and Maintenance for CNC Machine 47
Text Safety Notes for CNC Machine Operations 48
Supplementary Reading Fault Diagnosis and Action 52
Translating Skill（4）词量的增减 55
Unit 5 Introduction to PLC 60
Dialogue 60
Text Introduction to PLC 61
Supplementary Reading Types of Control Devices 65
Translating Skill（5）常见多功能词的用法（1） 67
Unit 6 What Is Manufacturing? 73
Dialogue 73
Text What Is Manufacturing? 74
Supplementary Reading Automated Factory and Automatic Factory 77
Translating Skill（6）常见多功能词的译法（2） 79
Unit 7 CAD and CAM 86
Dialogue 86
Text CAD and Applications 87
Supplementary Reading CAM and Applications 91
Translating Skill（7）数词的译法 94
Unit 8 Flexible Manufacturing System 100
Dialogue 100
Text Flexible Manufacturing Systems 101
Supplementary Reading Computerized Control of CIM 105
Translating Skill（8）被动语态的译法 107
Unit 9 Automatic Control Systems 113
Dialogue 113
Text Automatic Control Systems 114
Supplementary Reading Manual and Automatic Control Systems 116
Translating Skill（9）英汉语序的对比及翻译（1） 118
Unit 10 AC Servo Motor Maintenance 124
Dialogue 124
Text AC Servo Motor Maintenance 125
Supplementary Reading The Future Factory Is Digital 130
Translating Skill（10）英汉语序的对比及翻译（2） 134
Dialogue 139
Unit 11 Industrial Robots 139
Text Industrial Robots 140
Supplementary Reading The Meaning of Quality 145
Translating Skill（11）长句的译法 147
Unit 12 Applying for a Job 153
Dialogue 153
Text Job Advertisement 154
Supplementary Reading Personal Resume and Letter of Application 158
Translating Skill（12）科技应用文的译法 161
Appendix Ⅰ Terms on CNC Technology数控技术常用术语中英文大全 169
Appendix Ⅱ Abbreviation on Mechanics一般机械用缩略语（中英对照） 172
Appendix Ⅲ Contracts合同 180
Appendix Ⅳ Key to Exercises练习答案 189
Appendix Ⅴ Reference Translation参考译文 200
Appendix Ⅵ Vocabulary词汇 226
参考文献 236