全书共10单元，每单元包括与单元知识点相关的课文、同步阅读（含练习）、两篇提升性的阅读材料共4篇课文及每单元后的练习，每单元的难度均由简到难。全书的内容涉及机械制图、工程材料、机械零件、公差配合、刀具、加工工艺、钳工、焊工、零部件及数控机床。本书选择的文章及阅读材料尽量贴近实际应用，反映机电技术的新的发展方向。在文章选择上，每单元的知识点均采用了由简到难的顺序，在授课教师的引导和帮助下，学生可以较好地完成本书的学习。
本书可作为职业院校机电类相关专业英语课程的教材，也可以作为广大自学者和工程技术人员的参考用书。

前言
Unit 1 Engineering Drawing
Text: Engineering Drawing
Synchronous Reading: Engineering Drawing
Reading Material A: Computer Aided Design (CAD)
Reading Material B: Historical Development of the CAD/CAM
Exercises
Unit 2 Mechanical Properties of Metals
Text: Properties of Metals
Synchronous Reading: Materials
Reading Material A: Mechanical Properties of Metals
Reading Material B: Hardness and Hardness Testing
Exercises
Unit 3 Mechanical Parts
Text: Machine Elements
Synchronous Reading: Machine Elements
Reading MaterialA: Gears
Reading Material B: Cams
Exercises
Unit 4 Tolerance and Fits
Text: Tools and Measures
Synchronous Reading: Measurement
Reading Material A: Dimensional Measurement
Reading Material B: Limits and Tolerances
Exercises
Unit 5 Machine Tools
Text: Five Basic Machining Techniques
Synchronous Reading: The Machine Tools
Reading Material A: The Tool Material
Reading Material B: The Production Tooling
Exercises
Unit 6 Machining :
Text: Primary Processes and Secondary Processes
Synchronous Reading: Machine Tools
Reading Material A: The Engine Lathe
Reading Material B: Milling Machines, Shapers, Planers and Grinding Machines...
Exercises
Unit 7 Basic Knowledge of Fitter
Text: Benchwork and Fitters
Synchronous Reading: Forging, Stamping and Rolling
Reading Material A: Plumbing
Reading Material B: Forging
Exercises
Unit 8 Welding
Text: Welding
Synchronous Reading: Arc Welding
Reading Material A: The History of Welding
Reading Material B: Stresses Occurring in Welding
Exercises
Unit 9 Mechatronics
Text: Stepper Motor
Synchronous Reading: Servo System
Reading Material A: Motors
Reading Material B: What Is Mechatronics?
Exercises
Unit 10 CNC Machines
Text: The Components of CNC Machine
Synchronous Reading: The Need for Numerical Control
Reading Material A: Numerical Control Automation
Reading Material B: Advantages and Disadvantages of NC
Exercises
附录 词汇表
参考文献