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 15
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 33
Supplementary Reading Basic Requirement of NC Machine Control 36
Translating Skill（3）词义的选择和引申 41
Unit 4 Safety and Maintenance for CNC Machine 47
Dialogue 47
Text Safety Notes for CNC Machine Operations 49
Supplementary Reading Fault Diagnosis and Action 52
Translating Skill（4）词量的增减 55
Unit 5 Introduction to PLC 61
Dialogue 61
Text Introduction to PLC 62
Supplementary Reading Types of Control Devices 66
Translating Skill（5）常见多功能词的用法（1） 68
Unit 6 What Is Manufacturing? 74
Dialogue 74
Text What Is Manufacturing? 75
Supplementary Reading Automated Factory and Automatic Factory 78
Translating Skill（6）常见多功能词的译法（2） 80
Unit 7 CAD and CAM 87
Dialogue 87
Text CAD and Applications 88
Supplementary Reading CAM and Applications 92
Translating Skill（7）数词的译法 95
Unit 8 Flexible Manufacturing System 101
Dialogue 101
Text Flexible Manufacturing Systems 102
Supplementary Reading Computerized Control of CIM 106
Translating Skill（8）被动语态的译法 108
Unit 9 Automatic Control Systems 115
Dialogue 115
Text Automatic Control Systems 116
Supplementary Reading Manual and Automatic Control Systems 118
Translating Skill（9）英汉语序的对比及翻译（1） 120
Unit 10 AC Servo Motor Maintenance 126
Dialogue 126
Text AC Servo Motor Maintenance 127
Supplementary Reading The Future Factory Is Digital 132
Translating Skill（10）英汉语序的对比及翻译（2） 136
Unit 11 Industrial Robots 141
Dialogue 141
Text Industrial Robots 142
Supplementary Reading The Meaning of Quality 147
Translating Skill（11）长句的译法 149
Unit 12 Applying for a Job 155
Dialogue 155
Text Job Advertisement 157
Supplementary Reading Personal Resume and Letter of Application 160
Translating Skill（12）科技应用文的译法 163
Appendix Ⅰ Terms on CNC Technology数控技术常用术语中英文大全 171
Appendix Ⅱ Abbreviation on Mechanics一般机械用缩略语（中英对照） 174
Appendix Ⅲ Contracts合同 182
Appendix Ⅳ Key to Exercises练习答案 191
Appendix Ⅴ Reference Translation参考译文 202
Appendix Ⅵ Vocabulary词汇 228
参考文献 238