电子自动化系考研复试专业英语词汇完美版.docx

1、电子自动化系考研复试专业英语词汇完美版bet 赌 bet betswim 游泳 swam swum2. 以d结尾的词，把d变成t。如:buildbuilt, lendlent, sendsent, spendspentspring 跳跃 sprang / sprung sprunglie 躺 lay lainspread 传播 spread spreaddive 跳水，俯冲 dived / dove divedstrike 敲击 struck struckleave 离开 left leftforgive 原谅 forgave forgiven1.通信原理词汇Uint1抽样量化和编码：samp

2、ling quantizing and coding话路：speech channel幅值：amplitude value抽样频率：sampling frequency抽样速率：sampling speed rate 脉冲流：stream of pulses重复率： repetition rate编码过程：coding processs模拟信号：analog signal传输质量transmission quality数字通信digital communication数字传输digital transmission含噪声的环境noisy environment传输路由transmission

3、path信号比signal-to-noise ratio信号电平signal levels地面系统terrestrial system噪声功率noise power二进制传输binary transmission反向操作reverse operation8位码序列8-digit sequence接收端receiving terminal帧格式frame format同步字synchronization wordthe schemes for performing these three function 实现这三项功能的方案a series of amplitude values 一串幅值a

4、speech channel of telephone quality 电话质量的话路a sequence of 8-binary digits 一个8位二进制码的序列a minimum theoretical sampling frequency 理论上的最小抽样频率a voice channel occupying the range 300Hz to 3.4KHz 占据着300Hz到3.4KHz 频率范围的话路8-digits per sample value 每个样值8位码the sparking of a car ignition system 汽车点火系统的大火the stream

5、 of the pulsese with a repetition rate of 64KHz 重复率为64KHz的脉冲the relationship of the true signal to the noise signal 真实信号与噪声信号的关系the signal received from a satellite 由卫星上收到的信号the complete information about a particular message 一条特定消息的全部信息the shape of the transmitted signal 被传信号的波形the attenuation intr

6、oduced by transmission path 由传输路由引入的衰减the unit that converts sampled amplitude value to a set of pulses 将抽样的幅值转换成一串脉冲的单元a sequence relating to channel 1，2 and son on涉及到第一路、第二路及其他各路的序列a unique sequence of pulses called synchronization word 被称为同步字的独特的码序列terrestrial system 地面系统the presence or absence o

7、f the pulse 脉冲的“有”或“无”a high-speed electronic switch 高速的电子开关the time division multiplexer 时分多路复用器Time Division Multiplexing 时分多路复用Unit2串行接口 serial interface 显示终端 CRT terminal 发送器与接收器 transmitter and receiver数据传输 data transmission数据流 data stream 闲置状态the idle state 传号电平 mark level 空号电平 space level 起始位

8、start bit 停止位stop bit T秒的持续时间duration of T seconds 奇偶校验位parity bit 错误标志error flag 传输错误transmission error 下降沿falling edge 符号间的空格 intersymbol space 接收机的定时 receiver timing 本地时钟local clock 磁带 magnetic tape 控制比特 control bit 逻辑1电平logical 1 level 二进制数据binary data 明显的缺点obvious disadvantage asynchronous seri

9、al data transmission 异步串行数据传输 The most popular serial interface 最为流行的串行接口 The transmitted data 所传送的数据 The clocks at the transmitter and receiver发送器和接收器的时钟 The era of teleprinter电传机的时代 The dots and dashes of a character一个字符的点和划 Three times the duration of intersymbol space符号间空格持续时间的三倍 The group of bi

10、ts called characters 被称为字符的比特组 The invariable units comprising 7 or 8 bits of information由7或8个比特的信息组成的固定单元 A clock generated locally by the receiver 由接收机本地产生的时钟 The received parity bit following the character 在字符后所收到的奇偶校验位 The falling edge of the start bit 起始位的下降沿 The character-oriented nature of th

11、e data link 数据链路面向字符的特性Uint3联网技术 networking technology国际标准化组织 international Organization for Standardization (ISO)参考模型 reference model数据分组 packet data应用程序 application program 网络媒体 network media分层 called layering 硬件和软件 hardware and software表示层 the presentation layer传输层 the transport layer数据链路层 the da

12、ta link layer网络服务 network services文件接入 file access数据格式 data format主机 host协议 protocol连接 connectivity逻辑地址 logical addressingNetworking technology 联网技术Proprietary networking system 专用联网系统The international Organization for Standardization 国际标准规划组织Compatibility between the various type of networks 各种网络之间

13、的兼容性Seven numbered layers 七层协议Standardization of network components 网络部件的标准化Error recovery 纠错Receiving hosts system 发方主机系统Connection-oriented circuits 面向连接的电路Information flow control 信息流控制Network media access 网络媒体接入Electrical specification 电气特性Maximum transmission distance 最大传输距离Uint 4传输控制协议transmis

14、sion control protocol互联协议Internet protocol数据通信data communication微波microwave高层协议higher-level protocol流量控制traffic control目的地destination（信）源resource段segment互联层Internet layer分组交换packet switching 超文本传输协议hypertext transfer protocol灵活性flexibility数据报datagramtransmission control protocol传输控制协议Internet protoc

15、ol互联协议satellite links卫星链路the Standard On which the internet has grown互联网发展所基于的标准Network access layer网络接人层connectionoriented protocol面向连接的协议file transfer protocol文件传输协议hypertext transfer protocol超文本传输协议domain name system域名系统developer of software软件开发人user datagram protocol用户数据报协议packet -switched techn

16、ology分组交换技术Unit 5局域网local area network工作站workstation外设peripheral拓扑topology集线器hub交换器switch流量traffic网络接口卡network interface card数据库database印刷电路板printed circuit board主板motherboard网络适配器network adaptor并行数据parallel data电脉冲electrical impulses中继器repeater联网介质networking medialocal-area network局域网logical topolo

17、gy逻辑拓扑devices that connect directly to a network segment直接连到网络段的部件network interface card网络接口卡process of the encapsulation打包的过程standardized symbol标准化的符号printed circuit board印刷电路板expansion slot of a bus on a computers motherboard在计算机母板上总线的扩展槽network adapter网络适配器parallel signal produced by the computer

18、由计算机产生的并行信号transmltting station发送站the specifications for Category 5 twisted-pair Ethernet五类双绞线以太网的规范Unit 6无源集线器passive hub网桥 bridge 可用带宽 useable handwidth地址表addressing table交换器 switch路由器 router光纤optical fiber无线介质wireless media铜线copper wirethe device that serves as the center of network作为网络中心的部件multi

19、-port repeater多端口中继器reliability of the network网络的可靠性passive or active hubs无源或有源的集线器protocol address or network address地址或网络地址network administrator网络管理者switching of packets to the best route交换分组到最佳路由network segment网络段Unit 7网络资源network resource 信息服务information services 远程终端remote terminals 地址address 互

20、连的系统 interconnected systems 命令 command 电子邮件electronic mail 主机Host 无线信道wireless channels搜索工具popup 用户界面user interface 拷贝copy 互连网popup 存取access 文本信息textual messages 鼠标mouse 协议protocol 超文本协议hypertext protocol giant network of computers located all over the world分布在全世界的计算机的巨大网络backbone system主干系统nationwi

21、de network全国范围的网络 electronic conferences电子会议remote terminal远程终端live conversation实时的对话 world wide web万维网searching tool搜寻工具the largest repository of information 最大的信息库network facilities resources网络设备资源the vast majority of the computers on the net在网上的绝大多数计算机the Unix operating system UNIX操作系统textual mes

22、sage文本信息sa way to move data between the internet and your PC 在因特网和你的PC机之间传送数据的方法the convenient searching tools方便的搜索工具the networked hypertext protocol 联网的超文本协议Unit 8optical fiber communications 光纤通信 light source 光源 wavelength 波长laser 激光器dispersion 色散transmission medium传输介质multi-mode fiber 多模光纤long-ha

23、ul trunks 长途干线single-mode fiber 单模光纤bandwidth 带宽wideband subscriber 宽带用户fiber-optics 纤维光学commercial technology 商用技术threshold current 门限电流photodetector 光检测器wavelength multiplexing 波分复用fiber-optic networks 纤维光网络video bandwidth 视频带宽长途传输 long distance transmission中继距离. repeater spacing商用技术 . commercial

24、technology光纤通信 . optical fibre communications已装光纤的总长度 . the total length of installed fibre长途通信系统 long-haul telecommunication system低衰减的石英纤维 the low-loss silica fibre衰减逼近瑞利极限的光纤fibers with losses approaching the Rayleigh limit室温下的门限电流 . room temperature threshold currents较长波长区the longer wavelength r

25、egion用户接入工程. subscriber access project部件性能和可靠性的改进improvements in component performance and reliability已安装的光纤系统的数据速率data rates for installed fibre optic system每秒吉比特gigabit per second range波分复用. wavelength multiplexing宽带用户环路系统. wideband subscriber loop system多纤连接器. multifibre connectors设计寿命 . projecte

26、d lifetime光源. light source单模光纤. single-mode fibre分布反馈式激光器 distributed-feedback laser信息容量 information capacity交换体系. switching hierarchy宽带业务 .broadband servicesUnit 9cellular mobile telephone 蜂窝式移动电话service perfor mance 服务性能frequency band 频带microprocessor 微处理器mobile unit 移动手机broadcast service广播业务anten

27、na 天线subsystems 子系统mobile subscriber 移动用户service capability 服务能力untiliaztion 利用率bandwidth 带宽single-sideband 单边带spread spectrum 扩频large scale integrated circuits 大规模集成电路cellular site 蜂窝点cellular switch 蜂窝交换机radio cabinet 无线机架call processing 呼叫处理service area 服务区frequency spectrum untiliaztion 频谱利用率the

28、 limited assigned frequency band 有限的指定频带complicated features and functions 复杂的特性和功能large-scale integrated circuit technology 大规模集成电路技术developmental cellular system 实验性的蜂窝系统central coordinating element 中央协调单元cellular administration 蜂窝管理operational limitation of conventional mobile telephone system 传统

29、移动电话的运行限制limited service capability 有限的服务能力radio communication industry 无线通行行业available radio frequency spectrum 可用的无线电频谱the allocated frequency band 所分配的频带mobile transceiver 移动收发器technological feasibility 技术上的可行性servere spectrum limitation 严厉的频谱限制FM broadcasting service 调频广播业务propagation path loss

30、传播路径衰耗multipath fading 多路径衰耗telephone company zone officee 电话公司地方局unit 10 personal communications 个人通信communication standards 通信标准fixed telephone service 固定电话业务network capacity 网络容量mobile switching center 移动交换中心international roaming 国际漫游broadband services 宽带业务interface converseon 接口转换frequency alloc

31、ation 频谱分配analogue mode 模拟方式cellular communication principle 蜂窝通信原理jamming 拥塞cell splitting 蜂窝裂变base station 基站register 寄存器billing function 收费功能access method 接入方法burst transmission mode 突发脉冲传输方式overhead information 开销信息handover algorithms 切换算法short message sevice 短消息服务technical specification 技术规范tot