本教材共分20课，包含普通机械加工技术、数控加工技术和CAD/CAM技术三方面的内容和知识。其中，数控技术是本教材的重点。每章后有阅读材料，书后有译文。本书的特点是浅显易懂，所选课文短小精悍，特别适合学习数控专业英语的初学者。
本教材为职业教育院校数控专业学生教材，可供各类高职院校、中职学校与高级技校相关专业使用。

前言
Lesson 1
Text Five Basic Techniques of Machining Metal
Reading Principles of Machining
Lesson 2
Text The Machine Control Computer
Reading CNC Machine Computers
Lesson 3
Text The Evolution of CNC
Reading The Need for Numerical Control
Lesson 4
Text Advantages of NC
Reading CNC versus Conventional Machining
Lesson 5
Text NC Applications
Reading CNC Performance
Lesson 6
Text CNC Controllers
Reading The Construction of CNC Machines
Lesson 7
Text The CNC Process
Reading Input and Output Media
Lesson 8
Text Axis and Motion Nomenclature
Reading Coordinates for Turning
Lesson 9
Text Programming Concepts
Reading Prepare to Program
Lesson 10
Text Tooling
Reading Feedrates and Spindle Speeds
Lesson 11
Text G-Codes
Reading M-codes
Lesson 12
Text FANUC System Operation Unit-CRT/MDI Panel
Reading FANUC System Operator's Panel
Lesson 13
Text Safety and Maintenance for CNC Machine
Reading FANUC-BESK NC System
Lesson 14
Text Battery for Memory Backup
Reading Replacing the Lithium Battery
Replacing the Alkaline Dry Cells
Lesson 15
Text Flexible Manufacturing System
Reading Machining Center
Lesson 16
Text Usability
Reading I-deas/Unigraphics NX Model Interoperability
Text Axis and Motion Nomenclature
Reading Coordinates for Turning