在线英语听力室

电信专业英英词典B-2

时间：2006-08-18 16:00:00

（单词翻译:单击）

　　Bit - This is a contraction1 of the term Binary2 digIT3, and it is a number in base 2, which means that it can only be a 0 or a 1.

　　Bit Error Rate - The rate of message bits that are in error (an error rate of 106 means that there will be on average one error for every million bits).

　　Bit Rate - This is the speed of a digital transmission and is measured in bits per second.

　　Bitstream - This is data transmitted in a continuous stream (i.e., there are no breaks between characters).

　　Blind Dial - This is when a modem4 is instructed to dial a number without waiting for a dial tone (when connecting to a line with no dial tone).

　　Block - A group of bits transmitted as a single unit.

　　Block Down Converter - A device that is analogous5 in function to an electrical transformer and is used to drop the 3.7 to 4.2 KHz signal down to UHF or lower frequencies (i.e, 1 GHz and lower).

　　Board - This is a system on which you can view or leave messages.

　　Bps - This stands for Bits Per Second is a transmission rate.

　　Braces6 - These are the characters "{" and "}".

　　Break - This is merely an interruption of some sort.

　　Broadband - Data transmission of greater than 56 Kbps (kilo-bytes per second) that can carry multiple signals at once. The larger the bandwidth of a carrier, the greater the amount of information it can carry.

　　Broadbeam - A single large circular beam, which covers a large geographic7 area (opposite of the narrow beam produced by more powerful antennas).

　　Broadcast - The sending of one transmission to multiple users in a defined group, area, or region. See Multicast and Unicast.

　　Browse8 - To read through a list of messages or surf the internet (with a browser9, such as Netscape or IE).

　　Buffer10 - This is the place in memory where the transmitted information is temporarily stored before transmission or after reception.

　　Bulletin Board System - This is an electronic message system, usually ran on a microcomputer11.

　　Busy - When a phone line or service is used being used by someone.

　　Busy Signal - The sound that signifies that a phone line or service is in use (i.e., busy).

　　Byte - 8 bits.


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1 contraction sn6yO     
n.缩略词，缩写式，害病
参考例句：
  • The contraction of this muscle raises the lower arm.肌肉的收缩使前臂抬起。
  • The forces of expansion are balanced by forces of contraction.扩张力和收缩力相互平衡。
2 binary jybzWZ     
adj.二，双；二进制的；n.双(体)；联星
参考例句：
  • Computers operate using binary numbers.计算机运行运用二进位制。
  • Let us try converting the number itself to binary.我们试一试，把这个数本身变成二进制数。
3 digit avKxY     
n.零到九的阿拉伯数字，手指，脚趾
参考例句：
  • Her telephone number differs from mine by one digit.她的电话号码和我的只差一个数字。
  • Many animals have five digits.许多动物有5趾。
4 modem sEaxr     
n.调制解调器
参考例句：
  • Does your computer have a modem?你的电脑有调制解调器吗？
  • Provides a connection to your computer via a modem.通过调制解调器连接到计算机上。
5 analogous aLdyQ     
adj.相似的；类似的
参考例句：
  • The two situations are roughly analogous.两种情況大致相似。
  • The company is in a position closely analogous to that of its main rival.该公司与主要竞争对手的处境极为相似。
6 braces ca4b7fc327bd02465aeaf6e4ce63bfcd     
n.吊带，背带；托架( brace的名词复数 )；箍子；括弧；（儿童）牙箍v.支住( brace的第三人称单数 )；撑牢；使自己站稳；振作起来
参考例句：
  • The table is shaky because the braces are loose. 这张桌子摇摇晃晃，因为支架全松了。
  • You don't need braces if you're wearing a belt! 要系腰带，就用不着吊带了。
7 geographic tgsxb     
adj.地理学的，地理的
参考例句：
  • The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
  • Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法
8 browse GSWye     
vi.随意翻阅，浏览；(牛、羊等)吃草
参考例句：
  • I had a browse through the books on her shelf.我浏览了一下她书架上的书。
  • It is a good idea to browse through it first.最好先通篇浏览一遍。
9 browser gx7z2M     
n.浏览者
参考例句：
  • View edits in a web browser.在浏览器中看编辑的效果。
  • I think my browser has a list of shareware links.我想在浏览器中会有一系列的共享软件链接。
10 buffer IxYz0B     
n.起缓冲作用的人(或物)，缓冲器；vt.缓冲
参考例句：
  • A little money can be a useful buffer in time of need.在急需时，很少一点钱就能解燃眉之急。
  • Romantic love will buffer you against life's hardships.浪漫的爱会减轻生活的艰辛。
11 microcomputer EDkxx     
n.微型计算机，微机
参考例句：
  • The main frame is the heart of a microcomputer system.主框架的核心是一个微机系统。
  • A microcomputer is a fast and accurate symbol processing system.微型计算机是一种快速、精确的符号处理系统。