本书根据教育部、国防科工委、中国机械工业联合会联合制定的两年制高等职业教育数控技术应用专业领域技能型紧缺人才培养指导方案编写，内容涵盖了数控技术的各个方面，包括数控原理、数控机床、数控加工、数控编程、数控生产车间等各个方面的数控技术专业英语词汇和内容。全书以典型数控系统的编程、操作英语说明书为主要参考资料，结合作者积累的数控教材和资料，以英文阅读理解、资料查询为**，目的是使学生具备阅读典型数控机床英文说明书、数控系统操作与编程英文说明书的能力。
本书可作为高等职业学校、高等专科学校、成人院校及本科院校举办的二级职业技术学院和民办高校数控技术应用等专业英语教材，也可作为工程技术人员的自学参考用书。

CONTENTS
Unit 1 Introduction ot CNC Machine Tool
1.1 Machining Center Configurations
1.2 Vertical Machining Centers
1.3 Horizontal Machining centers
1.4 Other Programmable Features of Machining Centers
Exercises
Unit 2 Tooling for CNC Machine
2.1 Introduction
2.2 Material for Cutting Tools
2.3 The Practical Application of CementedCarbides
2.4 Tooling Systems
2.5 Automatic Tool Changer System
Exercises
Unit 3 Program Zero and Coordinate System
3.1 What is Coordinate System
3.2 Plus and Minus
3.3 Program Zero
3.4 Absolute vs. Incremental
Exercises
Unit 4 Mathematics for NCProgramming
4.1 Introduction
4.2 Geometry
4.3 Trigonometry
Exercises
Unit 5 Word Address Programming
5.1 Introduction
5.2 Programming Language Format
5.3 Programming Language Terminology
5.4 Program and Sequence Numbers(O, N Codes)
5.5 Preparatory Functions ( G Codes)
5.6 Dimension words (X, Y, Z, ...Codes)
5.7 Feedrate ( F Codes)
5.8 Spindle Speed (S Codes)
5.9 Miscellaneous Machine Functions(M Codes)
5.10 Why Learn Manual Programming
Exercises
Unit 6 Speeds and Feeds
6.1 Cutting Speeds and Feeds
6.2 Spindle Speeds
6.3 Feed Rates
6.4 Feed Rate and Spindle Speed Override
Exercises
Unit 7 Preparation for Programming
Unit 8 Programming Techniques
Unit 9 Three Kinds of Compensation
Unit 10 Machine Design
Unit 11 Setup and Maintain
Unit 12 Three Modes of Operation
Unit 13 Program Verification Techniques
Unit 14 CAD/CAM
Appendix A G&M Code Reference
Appendix B The Sample of CNC Machine Specification
Appendix C Vocabulary
References