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SECTION 1 Mechanical Engineering1

UNIT 11

Text Heat Treatment of Steels1

Reading Material Iron and Steel4

Exercises4

UNIT 26

Text Forming and Machining6

Reading Material Five Basic Machining Techniques9

Exercises10

UNIT 312

Text Machine Elements12

Reading Material Gears14

Exercises17

UNIT 418

Text CAD and Applications18

Reading Material Two-Dimensional Drawings20

Exercises21

UNIT 522

Text CAM and Applications22

Reading Material NC Machines24

Exercises26

SECTION 2 Electric Circuits and Electronic Technology28

UNIT 628

Text Basic Electricity and Magnetism28

Reading Material Electricity Produced from Magnetism31

Exercises32

UNIT 734

Text Direct-Current Circuits34

Reading Material Parallel Circuits:Voltage Relations37

Exercises39

UNIT 841

Text Transformers41

Reading Material Operation Under Load44

Exercises45

UNIT 947

Text Electric Power47

Reading Material Measurement of Electric Power and Energy51

Exercises52

UNIT 1053

Text Electrical Instruments and Electrical Measurements53

Reading Material Measurement of Resistance55

Exercises56

SECTION 3 Computer Applications58

UNIT 1158

Text Why Learn About Computers?58

Reading Material Computers in the Home and Workplace60

Exercises61

UNIT 1262

Text Memory62

Reading Material Data and Programs64

Information64

Exercises65

UNIT 1367

Text Starting Your Computer67

Reading Material Using the Windows Operating System69

Using the Internet and World Wide Web69

Exercises70

UNIT 1471

Text Software71

Reading Material Systems Software73

Application Software74

Exercises74

UNIT 1576

Text What is a Network?76

Reading Material Communications and Networks78

Communications Protocols79

Exercises79

SECTION 4 Meters and Machine Control81

UNIT 1681

Text Four Important Controlled Variables81

Reading Material Differential Pressure Flow Meters82

Exercise83

UNIT 1784

Text Thermometer84

Reading Material Resistance Thermometer85

Exercises86

UNIT 1887

Text Automatic Control Systems87

Reading Material Manual and Automatic Control Systems88

The components of Automatic Control Systems89

Exercises89

UNIT 1990

Text Two-position Control90

Reading Material The Temperature Control of Steam-Jacketed Kettle91

Exercises92

UNIT 2094

Text Proportional Control94

Reading Material Rate Mode of Control96

Exercises96

SECTION 5 Chemical Mechanical Engineering97

UNIT 2197

Text Liquid Pumps97

Reading Material The Centrifugal Pump99

Exercises100

UNIT 22102

Text The Reciprocating Compressor102

Reading Material Multistage Centrifugal Compressors105

Exercises106

UNIT 23107

Text Continuously Fed Centrifuges107

Reading Material Batch Centrifugals110

Exercises112

UNIT 24113

Text Stresses in Pressure Vessels113

Reading Material Heat Exchangers116

Exercises118

UNIT 25120

Text Design of Packed Towers120

Reading Material Agitation Equipment122

Exercises124

SECTION 6 Refrigeration and Air Conditioning Technology125

UNIT 26125

Text Air125

Reading Material The Need of Air Conditioning128

Exercises129

UNIT 27130

Text The Nature of Thermodynamics130

Reading Material The Laws of Thermodynamics132

Exercises133

UNIT 28135

Text Heat Transfer135

Reading Material Three Fundamental Types of Heat Transfer137

Exercises138

UNIT 29139

Text Mechanical Vapor Compression Refrigeration139

Reading Material The Multipressure System141

Exercises142

UNIT 30143

Text Evaporative Air Cooling143

Reading Material Room Air Conditioners145

Exercises147

APPENDIX（附录一）148

课文及阅读材料译文148

附录二 练习答案190

图题译文203

参考文献205