通信与信息工程专业英语教程
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1、configuration 配置 Topologies 拓扑结构
2、multidrop 插头式 ring or loop 环状或回路型 the mesh 网状
3、simultaneously 同时 intelligence 情报
4、perpheral equipment 外围终端
5、essentially /in nature 本质上
6、vary considerable 在很大程度上
7、hotel reservation systems 宾馆预订系统
8、telecommunications network 电信网络
9、plural 复数 mass media 大众媒体
10、ATM = automatic teller machine
11、simplex 单工,duplex 双工,HDX = half duplex, FDX= full duplex, F/FDX= full/full duplex
12、unidirectional 单向的,two-way alternate or either-way lines 双向交替或任一方向电路
13、citizens band 民用波段
14、postal system 邮政系统
15、indefinitely 不确定的
16、vice verse 反之亦然
17、error control 差错控制,error detection 检错,error correction 纠错,echoplex 回送18、Trade-off 平衡,折中考虑,serial-parallel transmission串行和并行传输
19、between the source and destination 在源地和目的地之间
20、short-distance communications 近距离通信
21、and serial transmission is used for long-distance communications 远距离通信22、To insure an ordly flow of data between the line control unit and the modem,a serial interface is placed between them .
23、in data communications,there are four types of synchronization(同步)that must be achieved:bit or clock synchronization,modem or carrier
synchronization,character aynchronization,and message synchronization.
1、Innovation 进步
2、optical feeder links 光馈链接,digital compression techniques 数字压缩技术
3、service integration 综合服务
4、频分复用frequency-division multiplexing
5、utilize 利用
6、in this implementation 在这种实现方式中
7、fiber-to-the-curb(FTTC) 光纤到路边
8、视频点播 video on demand(VOD)
9、telephony 电话, industry 行业
10、the CATV industry is deploying bidirectional networks —CATV 行业有必要拓展双向网络
11、noted above 前面提到的
12、atenuates 衰减
13、nonadjacent 不毗连的,turn over 移交,subscribers 订户
14、packet-switched wireless network 分组
交换无线网络
15、with the sponsorship 在---的资助下
16、hub 中心
17、on the order of 大约,在---数量级
18、penetration 渗透
线局域网WLAN = wireless local area network
hold 立足点
ebook 笔记本
kbone 骨干,integrated services 综合服务,
timedia Web access 多媒体网页访问
共信道信令 common channel signaling
话用户 subscriber telephone
程监控 remote monitoring
步传输 synchronous transmission
C 同步数据链路控制 =synchronous data link control C 高级数据链路控制=high-level data link control
息包 packet
同步码 self-aynchronizing code
储转发分组交换 store-and-forward packet-switching 局域网 = local area network
广域网 = wide area network
步传输模式(ATM)= Asynchronous Transfer mode
l 信元,feeder 馈电线
线电视CATV = community antenna television
碍物 obstruction
directional 单向的
adjacent 不相邻的,turn over 反复考虑
h the sponsorship of 在----的资助下
the order of 与----相似的
hold 立足点,notebook 笔记本
上电脑 palm-sized computer
kbone 骨干,脊椎
顶盒 set-top TV box
tiplex 多路复用
N = integrated services digital network
组交换 packet-switch
字用户线路 DSL = digital subscriber line
re and forward 存储转发
算机串口 the serial port of computer devices
是短距离(少于30米)的低速率(为38kbps)传输标准
s standard is for low bit rate(up to 38kbps) nsmission over short diatances(less than 30m) 每次一个字符 one character at a time
可以添加一个奇偶校验比特用于检错 they can add a
parity bit for error detection
连续字符 successive characters
时间间隔 time interval
当接收器检测到一个新字符的开始时
When the receiver detects the beginning of a new character
非双绞线 untwisted wires
随着速率和距离的增加 as the rate and the distance increase
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1、simultaneously 同时的
2、facsimile 传真
3、audio 音频
4、severe terrain 恶劣的地形
5、composite 合成
6、preemphasis network 预加重网络
7、deviator 偏差器