目    录
 
Unit 1  Fundamentals of Electronic 
       Circuits 1
1.1  Introduction to Circuit Theory 1
New Words and Expressions 4
Notes 4
1.2  Analog and Digital Circuits 5
New Words and Expressions 11
Notes 11
1.3  Three-Phase Circuits 13
New Words and Expressions 17
Notes 18
1.4  Further Reading 18
Reading  Amplifiers and Their 
Applications 18
Translation Methods and Skills of EST 
(English of Science and Technology) 
——科技英语翻译方法与技巧：省略法 21
Exercises 23
Unit 2  Power Electronics 24
2.1  Introduction 24
New Words and Expressions 25
Notes 26
2.2  Power Semiconductor Devices 27
2.2.1  Diode 28
2.2.2  Thyristors and GTOs 28
2.2.3  Power MOSFEETs and IGBTs 29
New Words and Expressions 30
Notes 30
2.3  Power Electronic Converters 31
2.3.1  Rectifiers and Inverters 31
2.3.2  Choppers and Cycloconverters 33
New Words and Expressions 35
Notes 35
2.4  Further Reading 36
Reading   Electronic Filters 36
Translation Methods and Skills of EST 
(English of Science and Technology)——
科技英语翻译方法与技巧：长句的翻译 37
Exercises 39
Unit 3  Electrical Machines 41
3.1  Introduction 41
3.1.1  Elementary Concepts of Electrical
      Machines 41
3.1.2  Classification of Electrical 
      Machines 41
3.1.3  Applications of Electrical Machines 42
New Words and Expressions 43
Notes 44
3.2  Induction Machines 44
3.2.1  Equivalent Circuit of a Polyphase 
      Induction Machine 45
3.2.2  Performance of a Polyphase 
      Induction Machine 46
3.2.3  Torque-Speed Characteristics of 
      3-Phase Induction Motors 47
3.2.4  Applications for Induction Motors 48
New Words and Expressions 48
Notes 49
3.3  Synchronous Machines 50
3.3.1  Equivalent Circuit of a Synchronous 
      Machine 50
3.3.2  Power Angle and Other Performance 
      Characteristics 51
3.3.3  Steady-State Stability 53
3.3.4  Applications for Synchronous 
      Motors 53
New Words and Expressions 53
Notes 54
3.4  DC Machines 55
3.4.1  Constructional Features of DC 
      Machines 55
3.4.2  Equivalent Circuit of a DC 
      Machine 57
3.4.3  DC Machines Characteristics 58
3.4.4  Applications for DC Machines 59
New Words and Expressions 61
Notes 61
3.5  Further Reading 62
Reading Monitoring Techniques for 
Rotating 62
Electrical Machines 62
Translation Methods and Skills of EST 
(English of Science and Technology) ——科
技英语翻译方法与技巧：词义的确定 64
Exercises 65
Unit 4  Electric Power Systems 67
4.1  Introduction 67
New Words and Expressions 68
Notes 69
4.2  Components of Electric Power 
     Systems 69
New Words and Expressions 71
Notes 71
4.3  Operation and Control of Power 
     Systems 72
New Words and Expressions 74
Notes 75
4.4  Power System Protections 76
4.4.1  Faults and Their Damages on Power 
      Systems 76
4.4.2  Circuit Breakers 78
4.4.3  Distance Protection 79
4.4.4  Lightning Arresters 80
New Words and Expressions 81
Notes 82
4.5  Power System Stability 83
New Words and Expressions 84
Notes 84
4.6  Further Reading 85
Reading   Smart Grid 85
Translation Methods and Skills of EST 
(English of Science and Technology) ——科
技英语翻译方法与技巧：被动语态 86
Exercises 89
Unit 5  Electric Power Generations 91
5.1  Coal-fired Power Generation 91
New Words and Expressions 92
Notes 93
5.2  Hydropower Generation 94
New Words and Expressions 96
Notes 96
5.3  Windpower Generation 97
New Words and Expressions 99
Notes 99
5.4  Solarpower Generation 100
New Words and Expressions 102
Notes 102
5.5  Further Reading 103
Reading  Wind-Energy-Conversion 
Systems 103
Translation Methods and Skills of EST 
(English of Science and Technology) ——科
技英语翻译方法与技巧： 顺译与调整
语序 103
Exercises 104
Unit 6  Automatic Control 107
6.1  Introduction 107
6.1.1  Elementary Concept of Control 
      Systems 107
6.1.2  Classification and Applications of 
      Control Systems 108
New Words and Expressions 109
Notes 110
6.2  Feedback Control 112
6.2.1  Transfer Functions and Block 
      Diagrams 112
6.2.2  Dynamic Response of Control 
      Systems 114
6.2.3  Steady-state Error of Linear 
      Systems 115
6.2.4  Classification of Feedback Control 
      Systems 115
New Words and Expressions 116
Notes 117
6.3  Control Methods 119
6.3.1  PID Control 119
6.3.2  Fuzzy Control 122
New Words and Expressions 123
Notes 124
6.4  Control Technologies 125
6.4.1  Single-chip Microprocessor 
      Control 125
6.4.2  Programmable Logic Control 127
New Words and Expressions 128
Notes 129
6.5  Further Reading 129
Reading  The Future of PID Control 129
Translation Methods and Skills of EST 
(English of Science and Technology) ——科
技英语翻译方法与技巧：否定句的
翻译 130
Exercises 132
Unit 7  Sensoring Technology 134
7.1  Introduction 134
New Words and Expressions 136
Notes 137
7.2  Sensors 138
7.2.1  Resistive Temperature Detectors 138
New Words and Expressions 141
Notes 142
7.2.2  Strain Gauges 142
New Words and Expressions 144
Notes 145
7.2.3  Capacitive Pressure Sensors 146
New Words and Expressions 148
Notes 149
7.2.4  Inductive Displacement Sensor 149
New Words and Expressions 152
Notes 153
7.3  Further Reading 154
Reading  Sensor Network 154
Translation Methods and Skills of EST 
(English of Science and Technology)——科
技英语翻译方法与技巧：定语从句
的翻译 155
Exercises 158
Unit 8  Computer Network and Networked
        Control 159
8.1  Introduction to Computer network 159
New Words and Expressions 161
Notes 161
8.2  Introduction to Networked Control 
     Systems 162
New Words and Expressions 165
Notes 166
8.3  Further Reading 166
Reading  Application of NCSs to Power 
System Control 166
Translation Methods and Skills of EST 
(English of Science and Technology) 
——科技英语翻译方法与技巧：科技
论文写作格式及规范 167
Unit 9  Signal Processing ＆ 
        Telecommunication 169
9.1  Signals and Spectral Analysis 169
9.1.1  Periodic Signals and Fourier 
      Series 169

9.1.2  Spectral Analysis and Signal 
      Bandwidth 170
New Words and Expressions 171
Notes 172
Exercises 172
9.2  Modulation, Sampling, and 
     Multiplexing 173
9.2.1  Frequency Translation and Product 
      Modulation 173
9.2.2  Sampling and Pulse Modulation 173
9.2.3  Multiplexing Systems 174
New Words and Expressions 174
Notes 175
Exercises 175
9.3  Interference 176
9.3.1  Noise 176
9.3.2  Filtering, Distortion, and 
      Equalization 176
New Words and Expressions 177
Notes 178
Exercises 178
9.4  Analog Telecommunication 
     Systems 179
9.4.1  Amplitude Modulation 179
9.4.2  Message Demodulation 180
9.4.3  Frequency Modulation 180













9.4.4  Demodulators for FM 181
New Words and Expressions 182
Notes 182
Exercises 183
9.5  Digital Telecommunication 
     Systems 184
9.5.1  Sampling 184
9.5.2  Quantization and Quantization 
      Error 184
9.5.3  Companding 185
9.5.4  Source Encoding 185
New Words and Expressions 186
Notes 186
Exercises 187
9.6  Further Reading 187
Reading  Anti-noise Systems—Noise 
Cancellation 187
Translation Methods and Skills of EST 
(English of Science and Technology) 
——科技英语翻译方法与技巧：科技
论文英文摘要的写作 188
参考译文 193
Keys to Exercises 269
参考文献 279