通信专业英语PDF电子书下载

Unit 1　Communication Networks（通信网） 1

New Words Phrases and Abbreviations 2

Notes to the Passage 3

Exercises to the Passage 4

Reading Material　Telephone services（电话业务） 6

Unit 2　Transmission and Switching Technology（传输与交换技术） 9

New Words Phrases and Abbreviations 11

Notes to the Passage 11

Exercises to the Passage 13

Reading Material Cellular Telephone Systems（蜂窝电话系统） 14

Unit 3　Development and Classification of Optical Fiber（光纤的发展与分类） 17

New Words and Phrases 18

Notes to the Passage 19

Exercise to the Passage 20

Reading Material Fusing Fibers（光纤的熔接过程） 22

Unit 4　Computer Hardware（计算机硬件） 24

New words Phrases and Abbreviations 25

Notes to the Passage 26

Exercises to the Passage 27

Reading Material What Is a Computer System（什么是计算机系统） 29

Unit 5　The Central Processing Unit（中央处理单元） 32

New Words Phrases and Abbreviations 33

Notes to the Passage 34

Exercise to the Passage 35

Reading Material Operating System（操作系统） 37

Unit 6　Data Transmission Media（Ⅰ）（数据传输媒介（Ⅰ）） 40

New Words Phrases and Abbreviations 42

Notes to the Passage 43

Exercises to the Passage 44

Reading Material Modems（调制解调器） 46

Unit 7　Data Transmission Media（Ⅱ）（数据传输媒介（Ⅱ）） 48

New Words and Phrases 50

Notes to the Passage 50

Exercises to the Passage 51

Reading Material Computer Security（计算机安全） 53

Unit 8　Communication Satellite Systems（卫星通信） 57

New Words Phrases and Abbreviations 59

Notes to the Passage 59

Exercises to the Passage 60

Reading Material Bluetooth Technology（蓝牙技术） 62

Unit 9　Communication Facilities（通信设备） 65

New Words Phrases and Abbreviations 66

Notes to the Passage 67

Exercises to the Passage 68

Reading Material　Paging System（寻呼系统） 69

Unit 10　Software（软件） 72

New Words and Phrases 73

Notes to the Passage 74

Exercises to the Passage 75

Reading Material　Program Development（程序的发展） 76

Unit 11　Data Communications（数据通信） 78

Notes to the Passage 80

New Words and Phrases 80

Exercises to the Passage 81

Reading Material　Packet-switching Networks（分组交换网） 82

Unit 12　System 1240 Digital Exchange Architecture（S 1240数字交换结构） 85

New Words Phrases and Abbreviations 86

Notes to the Passage 87

Exercises to the Passage 88

Reading Material　Digital Switching Network（数字交换网） 90

Unit 13 Purpose of SONET/SDH（SONET/SDH技术） 92

New Words Phrases and Abbreviations 93

Notes to the Passage 94

Exercises to the Passage 94

Reading Material Overview of SDH（SDH技术简介） 96

Unit 14　ISDN（综合业务数字网） 99

New Words Phrases and Abbreviations 100

Notes to the Passage 101

Exercises to the Passage 102

Reading Material Function of Main Memory（主存的功能） 104

Unit 15　Hybrid/Fiber Coax（HFC）（混合光纤／同轴电缆接入技术） 106

New Words Phrases and Abbreviations 107

Notes to the Passage 108

Exercises to the Passage 108

Reading Material Video Conferencing—A Future Way of Communications（未来通信方式—视频会议） 110

Unit 16　LAN and WAN Internetworking（局域网和广域网） 113

New Words Phrases and Abbreviations 114

Notes to the Passage 115

Exercises to the Passage 116

ReadingMaterial　Types of Files（文件的分类） 117

Unit 17 The World Wide Web（万维网） 120

New Words Phrases and Abbreviations 121

Notes to the Passage 122

Exercises to the Passage 122

Reading Material　The World Wide Web（万维网） 124

Unit 18　TCP/IP（传输控制协议／网际协议） 127

New Words Phrases and Abbreviations 129

Notes to the Passage 130

Exercises to the Passage 131

Reading Material E-mail（电子邮件） 132

Unit 19　IP Telephony（IP电话） 135

New Words Phrases and Abbreviations 137

Notes to the Passage 138

Exercisses to the Passage 139

Reading Material Web Chat（网上聊天） 141

Unit 20　Third-Generation Evolution（第三代移动通信的发展） 144

New Words Phrases and Abbreviations 146

Notes to the Passage 147

Exercises to the Passage 148

Reading Material ATM+MPEG2=Efficient Multimedia（ATM+MPEG2＝高效多媒体） 150

附录一　专业英语的翻译技巧 153

附录二　英语构词法 161

附录三　单词表 171

附录四　词汇短语表 190

附录五　缩略语表 198

参考文献 201