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电信专业英英词典D-5

时间：2006-08-18 16:00:00

（单词翻译:单击）

　　DCE

　　data circuit terminating equipment

　　DCP

　　digital communications protocol2

　　DCS

　　digital cross-connect system

　　DDD

　　direct distance dialing

　　DDN

　　Defense3 Data Network

　　Digit1 L

　　Digital L is another amplitude4 condition that represents a binary5 digit 0. See binary digit or bit.

　　Digital Carrier Systems

　　Digital Carrier Systems are carrier systems for digital signals that uses regenerative versus6 linear repeaters and time division multiplexing.

　　Digital Cross Connect System (DCS)

　　DCS is a new generation of switching/multiplex equipment that permits per-channel DS0 (64 kbps) electronic cross-connection from one T1 transmission facility to another, directly from the constituent7 DSl signals. Commonly referred to as "DACS" (digital access and cross connect system), although this is a trademark8 of AT&T.

　　Digital Signal

　　A digital signal is a signal (electrical or otherwise) in which information is carried in a limited number of different (two or more) discrete9 states. The most fundamental and widely used form of the digital signal is binary, in which one amplitude condition represents a binary.

　　Digital Termination Service (DTS)

　　DTS is a service provided by some carriers permitting opera tors of private networks to use digital microwave equipment to gain access to carrier net works. The FCC has allocated10 a special microwave band for DTS.


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1 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。
2 protocol nRQxG     
n.议定书，草约，会谈记录，外交礼节
参考例句：
  • We must observe the correct protocol.我们必须遵守应有的礼仪。
  • The statesmen signed a protocol.那些政治家签了议定书。
3 defense AxbxB     
n.防御，保卫；[pl.]防务工事；辩护，答辩
参考例句：
  • The accused has the right to defense.被告人有权获得辩护。
  • The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。
4 amplitude nLdyJ     
n.广大；充足；振幅
参考例句：
  • The amplitude of the vibration determines the loudness of the sound.振动幅度的大小决定声音的大小。
  • The amplitude at the driven end is fixed by the driving mechanism.由于驱动机构的作用,使驱动端的振幅保持不变。
5 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。
6 versus wi7wU     
prep.以…为对手，对；与…相比之下
参考例句：
  • The big match tonight is England versus Spain.今晚的大赛是英格兰对西班牙。
  • The most exciting game was Harvard versus Yale.最富紧张刺激的球赛是哈佛队对耶鲁队。
7 constituent bpxzK     
n.选民；成分，组分；adj.组成的，构成的
参考例句：
  • Sugar is the main constituent of candy.食糖是糖果的主要成分。
  • Fibre is a natural constituent of a healthy diet.纤维是健康饮食的天然组成部分。
8 trademark Xndw8     
n.商标；特征；vt.注册的…商标
参考例句：
  • The trademark is registered on the book of the Patent Office.该商标已在专利局登记注册。
  • The trademark of the pen was changed.这钢笔的商标改了。
9 discrete 1Z5zn     
adj.个别的，分离的，不连续的
参考例句：
  • The picture consists of a lot of discrete spots of colour.这幅画由许多不相连的色点组成。
  • Most staple fibers are discrete,individual entities.大多数短纤维是不联系的单独实体。
10 allocated 01868918c8cec5bc8773e98ae11a0f54     
adj. 分配的 动词allocate的过去式和过去分词
参考例句：
  • The Ford Foundation allocated millions of dollars for cancer research. 福特基金会拨款数百万美元用于癌症研究。
  • More funds will now be allocated to charitable organizations. 现在会拨更多的资金给慈善组织。