电信专业英英词典T-1

 

　　T1 Carrier

　　A T1 carrier is a time-division multiplexed digital transmission facility capable of supporting 24 voice channels, (each encoded as a 64 kbps PCM DS0 signal), producing an aggregate¹ multiplexer output signal at the 1.544 Mbps DS1 rate. Developed in the 1960s, the T1 carrier is designed to operate full duplex over two pairs in unshielded twisted pair (UTP) cable.

　　Tandem² Switching System

　　A tandem switching system is a broad functional³ category describing systems that connect trunks to trunks, and route traffic through a network.

　　Tariff⁴

　　A tariff is a published rate for a specific telecommunications service, equipment, or facility that constitutes a public contract between the user and the telecommunications supplier (i.e., carrier); tariff services and rates are established by and for telecommunications common carriers in a formal process in which carriers submit filings for federal or state government regulatory review, public comments, possible amendment⁵, and approval.

　　TA

　　terminal adapter

　　TCP/IP

　　Transmission control protocol⁶/internet protocol. TCP/IP is the transport layer and Internet layer, respectively, of the Internet suite⁷ of protocols⁸. TCP corresponds to layer 4 of the OSI protocol stack: IP performs some of the functions of layer 3. It is a connectionless protocol used primarily to connect dissimilar networks to each other.

　　TCP

　　transmission control protocol

　　TDMA

　　time division multiple access

　　TDM

　　time division multiplexing

　　Telecommunications

　　Telecommunications is any process that enables one or more users to pass to one or more other users information of any nature delivered in any usable form, by wire, radio, visual, or other electrical, electromagnetic, optical means. The word is derived⁹ from the Greek tele, "far off," and the Latin communicare "to share."

　　Telecommunications Closet

　　In a premises¹⁰ distribution system, a telecommunications closet is an area for connecting the horizontal and backbone¹¹ wiring and for containing active or passive PDS equipment.

　　Telecommunications Network

　　A telecommunications network is a system of interconnected facilities designed to carry traffic from a variety of telecommunications services. The network has two different but related aspects. In terms of its physical components¹², it is a facilities network. In terms of the variety of telecommunications services that it provides, it can support a set of many traffic networks, each representing a particular interconnection of facilities.

　　Telecommunications Service

　　Telecommunications service is a specified¹³ set of information transfer capabilities¹⁴ provided to a group of users by a telecommunications system.

1 aggregate   

adj.总计的，集合的；n.总数；v.合计；集合

参考例句：

• The football team had a low goal aggregate last season.这支足球队上个赛季的进球总数很少。
• The money collected will aggregate a thousand dollars.进帐总额将达一千美元。

2 tandem   

n.同时发生；配合；adv.一个跟着一个地；纵排地；adj.（两匹马）前后纵列的

参考例句：

• Malcolm's contract will run in tandem with his existing one.马尔科姆的合同将与他手头的合同同时生效。
• He is working in tandem with officials of the Serious Fraud Office.他正配合欺诈重案办公室的官员工作。

3 functional   

adj.为实用而设计的，具备功能的，起作用的

参考例句：

• The telephone was out of order,but is functional now.电话刚才坏了，但现在可以用了。
• The furniture is not fancy,just functional.这些家具不是摆着好看的，只是为了实用。

4 tariff   

n.关税，税率；(旅馆、饭店等)价目表，收费表

参考例句：

• There is a very high tariff on jewelry.宝石类的关税率很高。
• The government is going to lower the tariff on importing cars.政府打算降低进口汽车的关税。

5 amendment   

n.改正，修正，改善，修正案

参考例句：

• The amendment was rejected by 207 voters to 143.这项修正案以207票对143票被否决。
• The Opposition has tabled an amendment to the bill.反对党已经就该议案提交了一项修正条款。

6 protocol   

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。

7 suite   

n.一套(家具)；套房；随从人员

参考例句：

• She has a suite of rooms in the hotel.她在那家旅馆有一套房间。
• That is a nice suite of furniture.那套家具很不错。

8 protocols   

n.礼仪( protocol的名词复数 )；（外交条约的）草案；（数据传递的）协议；科学实验报告（或计划）

参考例句：

• There are also protocols on the testing of nuclear weapons. 也有关于核武器试验的协议。 来自辞典例句
• Hardware components and software design of network transport protocols are separately introduced. 介绍系统硬件组成及网络传输协议的软件设计。 来自互联网

9 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》

10 premises   

n.建筑物，房屋

参考例句：

• According to the rules,no alcohol can be consumed on the premises.按照规定，场内不准饮酒。
• All repairs are done on the premises and not put out.全部修缮都在家里进行，不用送到外面去做。

11 backbone   

n.脊骨，脊柱，骨干；刚毅，骨气

参考例句：

• The Chinese people have backbone.中国人民有骨气。
• The backbone is an articulate structure.脊椎骨是一种关节相连的结构。

12 components   

（机器、设备等的）构成要素，零件，成分； 成分( component的名词复数 )； [物理化学]组分； [数学]分量； （混合物的）组成部分

参考例句：

• the components of a machine 机器部件
• Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。

13 specified   

adj.特定的

参考例句：

• The architect specified oak for the wood trim. 那位建筑师指定用橡木做木饰条。
• It is generated by some specified means. 这是由某些未加说明的方法产生的。

14 capabilities   

n.能力( capability的名词复数 )；可能；容量；[复数]潜在能力

参考例句：

• He was somewhat pompous and had a high opinion of his own capabilities. 他有点自大，自视甚高。 来自辞典例句
• Some programmers use tabs to break complex product capabilities into smaller chunks. 一些程序员认为，标签可以将复杂的功能分为每个窗格一组简单的功能。 来自About Face 3交互设计精髓