机电与数控专业英语PDF电子书下载

Unit1 Engineering Drawing 1

1.1 Coordinate System 1

1.2 Types of Views 1

1.3 Fits 3

Words and Expressions 5

Notes 6

Exercises 7

课文参考译文 8

第1单元 工程制图 8

Technical Reading 11

Unit2 Mechanical Components 13

2.1 Shafts 13

2.2 Shaft Attachments 13

2.3 Clutches 14

2.4 Screws 15

2.5 Springs 15

2.6 Gears 16

2.7 Couplings 17

2.8 Seals 18

2.9 Rolling Contact Bearings 19

Words and Expressions 20

Notes 21

Exercises 23

课文参考译文 25

第2单元 机械零件 25

Technical Reading 31

Unit3 Engineering Materials and Their Properties 32

3.1 Engineering Materials 32

3.2 Properties of Materials 33

Words and Expressions 33

Notes 34

Exercises 35

课文参考译文 37

第3单元 工程材料及其性能 37

Technical Reading 39

Unit4 The Design and Selection of Mechanism Systems 40

4.1 Design of Mechanism Systems 40

4.2 Selection of Mechanisms 42

Words and Expressions 45

Notes 46

Exercises 47

课文参考译文 48

第4单元 机构系统的设计与选用 48

Technical Reading 53

Unit5 Numerical Control 55

5.1 Introduction 55

5.2 Principles of NC Machines 56

5.3 Types of Control Systems 57

5.4 Computer Numerical Control 57

5.5 Advantages and Disadvantages of NC 58

Words and Expressions 59

Notes 59

Exercises 61

课文参考译文 62

第5单元 数字控制 62

Technical Reading 65

Unit6 NC Operation 67

6.1 Describing the Operation Panel 67

6.2 Screen Reading 72

Words and Expressions 74

Notes 75

Exercises 76

课文参考译文 77

第6单元 数控操作 77

Technical Reading 84

Program Input and Output 84

Unit7 MachineTools 86

7.1 Lathes and Lathe Operations 86

7.2 Milling Machine and Milling 88

7.3 Machining Center 90

Words and Expressions 91

Notes 91

Exercises 92

课文参考译文 94

第7单元机床 94

Technical Reading 98

Unit 8 Computer Aided Design 100

8.1 CAD System’s Work 100

8.2 Exchange Specifications 100

8.3 Elements of CAD System 101

Words and Expressions 102

Notes 103

Exercises 103

课文参考译文 104

第8单元 计算机辅助设计 104

Technical Reading 106

Unit9 Computer Aided Manufacturing and Flexible Manufacturing System 109

9.1 Computer Aided Manufacturing 109

9.2 Flexible Manufacturing System 110

Words and Expressions 112

Notes 112

Exercises 113

课文参考译文 115

第9单元 计算机辅助制造与柔性制造系统 115

Technical Reading 117

Unit10 Computer-integrated Manufacturing Systems 119

10.1 Introduction 119

10.2 Subsystems of CIM 119

10.3 Database 121

10.4 The CIM Wheel 122

Words and Expressions 123

Notes 123

Exercises 124

课文参考译文 126

第10单元 计算机集成制造系统 126

Technical Reading 129

Unit11 Nontraditional Machining Processes 132

11.1 Electrical Discharge Machining 132

11.2 Electrochemical Machining 133

11.3 Ultrasonic Machining 133

11.4 Laser Beam Machining 133

11.5 Development Trends in the Field of Machining by Cutting and by Erosion 134

Words and Expressions 134

Notes 135

Exercises 136

课文参考译文 138

第11单元 非传统加工工艺 138

Technical Reading 140

Unit12 Dialogue Practice 141

12.1 Outside the Exhibition Hall 141

12.2 Inside the Exhibition Hall 141

12.3 In the Negotiation Booth 142

Words and Expressions 142

Notes 143

Exercises 144

课文参考译文 145

第12单元 对话练习 145

Technical Reading 147

参考文献 149