电信技术专业英语 第2版PDF电子书下载

Part One 3

Unit One 3

Text:A Brief History of Satellite Communications 3

Reading Material A:Satellite Communications 6

Reading Material B:Microwave Communications System 8

Reading Material C:Communication satellite 10

Interpretation of Carrier English 10

Unit Two 12

Text:Antennas 12

Reading Material A:Networking 14

Reading Material B:Electrical Engineering 17

Reading Material C:UFO 18

Interpretation of Science and Technology Terminology 18

Unit Three 21

Text:Digital Communications 21

Reading Material A:The Technology-MANs 24

Reading Material B:Digital Communications Technology 25

Reading Material C:Keypad 29

Introduction of Reading Skill 29

Unit Four 33

Text:Data Communication 33

Reading Material A:Laser 36

Reading Material B:Electricity-Generation and Transport 40

Reading Material C:Light Waves 41

Expressions of Passive Voice 42

Test Yourself Ⅰ 43

Unit Five 47

Text:Amplifiers 47

Reading Material A:Facsimile Transmission 49

Reading Material B:Fax via Email Cuts Costs 52

Reading Material C:Water 52

Text Format of Career English 53

Unit Six 57

Text:Analog Communications 57

Reading Material A:Facsimile Equipment 59

Reading Material B:Video Conferencing 62

Reading Material C:Pollution and Enviourament 62

Expressions of Numbers and Quantity 63

Unit Seven 65

Text:Semiconductors 65

Reading Material A:Pulse Code Modulation 68

Reading Material B:Communication Satellite Systems 71

Reading Material C:A Trick for Trouble-shooting 72

Basic Translation Techniques 72

Unit Eight 75

Text:Optical Communications 75

Reading Material A:Optical Fiber Communications 78

Reading Material B:Put Your Business on the Internet 81

Reading Material C:Laser and Communication 82

Classifying 82

Test Yourself 2 83

Unit Nine 88

Text:Electromagnetic Radiation 88

Reading Material A:The Electro-Magnet 91

Reading Material B:The Changing Role of the PBX 92

Reading Material C:Crisis of Energy 94

Defining 95

Unit Ten 97

Text:Electrical Measurements 97

Reading Material A:Modern Means of Communication 99

Reading Material B:ISDN 101

Reading Material C:New Changing in Our Living 104

Exemplifying 105

Unit Eleven 107

Text:Digital Signal Processors and Its Spplications 107

Reading Material A:Speech Synthesis 111

Reading Material B:Speech Recognition 113

Reading Material C:Great Lakes 114

Reporting 114

Unit Twelve 116

Text:Modern Role of Cryptography 116

Reading Material A:An Initial Hint on Foundations of Cryptography 120

Reading Material B:Basis of Information Security:More than Computational Intractability 121

Reading Material C:Saving Earth 122

Describing 122

Test Yourself Ⅲ 123

Unit Thirteen 128

Text:Communication Network 128

Reading Material A:Future Network Architectures and Their Services 131

Reading Material B:Key Factors in Communication Network Evolution 133

Reading Material C:Fresh Water 134

Predicting 135

Unit Fourteen 137

Text:Signal and System 137

Reading Material A:Overview of Specific Systems(1) 142

Reading Material B:Overview of Specific Systems(2) 143

Reading Material C:Ecology 144

Comparing 144

Unit Fifteen 147

Text:Introduction of ISDN 147

Reading Material A:Broadband ISDN 149

Reading Material B:Network Management 152

Reading Material C:Inner Ear 154

Cause and Effect 154

Unit Sixteen 156

Text:Characteristics of Communication Channels 156

Reading Material A:How Computer Viruses Spread 159

Reading Material B:Types of Computer Viruses Infection 162

Reading Material C:Using a Mouse 163

Reading Material D:Microprobe 165

Application Examples 166

Test Yourself Ⅳ 176

期末测试试卷（A） 180

期末测试试卷（B） 184

Part Two 191

课文与部分阅读材料参考译文 191

Appendix Ⅰ:"An overview of what make up an information system:people Procedure,software,hardware and data" 212

Appendix Ⅱ:Vocabulary 218

Appendix Ⅲ:Terminology Practice and Applications 245

Appendix Ⅳ:The following is a list abbreviations which appear in the text 262

Appendix Ⅴ:Abbreviations for Network 264

Appendix Ⅵ:Terminology for Electronics and Communications 276

Appendix Ⅶ：计算机软件人员水平考试试题解析 296

参考文献 303