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
Translation Skill 1 8
Unit 2 NC Operation 13
Dialogue 13
Text：NC Operation 13
Supplementary Reading：Screen Reading 24
Translation Skill 2 26
Unit 3 NC Programming 31
Dialogue 31
Text：NC Programming 31
Supplementary Reading：Basic Requirement of NC Machine Control 36
Translation Skill 3 40
Unit 4 Safety and Maintenance for CNC Machine 46
Dialogue 46
Text：Safety Notes for CNC Machine Operations 47
Supplementary Reading：Fault Diagnosis and Maintenance 52
Translation Skill 4 54
Unit 5 Introduction to PLC 60
Dialogue 60
Text：Introduction to PLC 60
Supplementary Reading：Types of Control Devices 65
Translation Skill 5 66
Unit 6 What Is Manufacturing？ 72
Dialogue 72
Text：What Is Manufacturing？ 72
Supplementary Reading：Automated Factory and Automatic Factory 76
Translation Skill 6 78
Unit 7 CAD and CAM 85
Dialogue 85
Text：CAD and Applications 86
Supplementary Reading：CAM and Applications 90
Translation Skill 7 93
Unit 8 Flexible Manufacturing System 98
Dialogue 98
Text：Flexible Manufacturing System 99
Supplementary Reading：Computerized Control of CIM 104
Translation Skill 8 106
Unit 9 Automatic Control System 111
Dialogue 111
Text：Automatic Control System 112
Supplementary Reading：Manual and Automatic Control System 115
Translation Skill 9 116
Unit 10 AC Servo Motor Maintenance 122
Dialogue 122
Text：AC Servo Motor Maintenance 123
Supplementary Reading：The Future Factory Is Digital 129
Translation Skill 10 132
Unit 11 Industrial Robots 137
Dialogue 137
Text：Industrial Robots 138
Supplementary Reading：The Meaning of Quality 143
Translation Skill 11 145
Unit 12 Applying for a Job 150
Dialogue 150
Text：Job Advertisement 151
Supplementary Reading：Personal Resume and Letter of Application 154
Translation Skill 12 156
Appendix Ⅰ 合同 164
Appendix Ⅱ 参考译文 172
Appendix Ⅲ 习题答案 205
Appendix Ⅳ 计算机数控技术常用术语 225
Appendix Ⅴ 一般机械用缩略语 228
Appendix Ⅵ 词汇 235
参考文献 249