电信专业英英词典T-2

　　Terrestrial Microwave Radio

　　Terrestrial microwave radio is a transmission systems consisting of at least two radio transmitter/receivers (transceivers) connected to high gain antennas¹ (directional antennas which concentrate electromagnetic or radiowave energy in narrow beams) focused in pairs on each other. The operation is point-to-point, that is, communications are established between two and only two antennas (installations) with line-of-sight visibility. This can be contrasted to point-to- multipoint systems like broadcast radio or television.

　　TIA

　　Telecommunications Industry Association

　　Time Division Multiplexing (TDM)

　　Time Division Multiplexing is a transmission facility shared in time (rather than frequency), i.e., signals from several sources share a single channel or bus by using the channel or bus in successive time slots. A discrete² time slot or interval³ is assigned to each signal source.

　　Time Division Switch

　　A time division switch is a switch that implements⁴ the switch matrix using the TDM process, in a time-slot interchange (TSI) arrangement (usually denoted by T in combined time and space division switches).

　　Token Passing Bus LAN (IEEE 802.4)

　　A token passing bus LAN is a LAN using a deterministic access mechanism⁵ and topology in which all stations actively⁶ attached to the bus "listen" for a broadcast token or supervisory frame. Stations wishing to transmit must receive the token before doing so; however the next logical station to transmit may not be the next physical station on the bus. Access is controlled by pre- assigned priority algorithms.

　　Token Passing Ring LAN (IEEE 802.5)

　　A token passing ring LAN is a LAN using a deterministic access mechanism and topology, in which a supervisory frame (or token) is passed from station to adjacent station sequentially. Stations wishing to transmit must wait for the "free" token to arrive before transmitting data. In a token ring LAN the start and end points of the medium are physically⁷ connected, leading to a ring topology.

　　TP

　　transaction processing

　　Tracking

　　Tracking features user-defined approval levels and project milestone⁸ tables to generate project cost and status information, which is tracked for reporting and review. As assigned tasks are completed, supervisors⁹ make daily entries identifying the number of hours worked on a task, materials used, and the number of work units completed. This information is then available for project jeopardy¹⁰ tracking, cost tracking, and determination of contractor¹¹ payments due.

　　Traffic

　　Traffic is the flow of information within a telecommunications network.

　　Transceiver

　　A transceiver is a generic¹² term describing a device that can both transmit and receive. In IEEE 802 local area network (LAN) standards, a transceiver consists of a transmitter, receiver, power converter, and, for CSMA/CD LANs, collision detector¹³ and jabber¹⁴ detector capabilities¹⁵. The transmitter receives signals from an attached terminal's network interface¹⁶ card (NIC) and transmits them to the coaxial cable or other LAN medium. The receiver receives signals from the medium and transmits them via the transceiver cable and NIC to the attached terminal. The jabber detector is a timer circuit that protects the LAN from a continuously transmitting terminal.

　　Transfer Mode

　　Transfer mode is a generic term for switching and multiplexing aspects of broadband integrated services digital networks (BISDN), adopted by CCITT Study Group XVIII.

　　Transmission control protocol¹⁷/internet protocol (TCP/IP)

　　See "Internet suite¹⁸ of protocols¹⁹" and "TCP/IP".

1 antennas   

[生] 触角，触须（antenna的复数形式）

参考例句：

• Marconi tied several antennas to kites. 马可尼在风筝上系了几根天线。 来自超越目标英语 第3册
• Radio astronomy today is armed with the largest antennas in the world. 射电天文学拥有世界上最大的天线。

2 discrete   

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。

3 interval   

n.间隔，间距；幕间休息，中场休息

参考例句：

• The interval between the two trees measures 40 feet.这两棵树的间隔是40英尺。
• There was a long interval before he anwsered the telephone.隔了好久他才回了电话。

4 implements   

n.工具( implement的名词复数 )；家具；手段；[法律]履行（契约等）v.实现( implement的第三人称单数 )；执行；贯彻；使生效

参考例句：

• Primitive man hunted wild animals with crude stone implements. 原始社会的人用粗糙的石器猎取野兽。 来自《现代汉英综合大词典》
• They ordered quantities of farm implements. 他们订购了大量农具。 来自《现代汉英综合大词典》

5 mechanism   

n.机械装置；机构，结构

参考例句：

• The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
• The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。

6 actively   

adv.积极地，勤奋地

参考例句：

• During this period all the students were actively participating.在这节课中所有的学生都积极参加。
• We are actively intervening to settle a quarrel.我们正在积极调解争执。

7 physically   

adj.物质上，体格上，身体上，按自然规律

参考例句：

• He was out of sorts physically,as well as disordered mentally.他浑身不舒服，心绪也很乱。
• Every time I think about it I feel physically sick.一想起那件事我就感到极恶心。

8 milestone   

n.里程碑；划时代的事件

参考例句：

• The film proved to be a milestone in the history of cinema.事实证明这部影片是电影史上的一个里程碑。
• I think this is a very important milestone in the relations between our two countries.我认为这是我们两国关系中一个十分重要的里程碑。

9 supervisors   

n.监督者，管理者( supervisor的名词复数 )

参考例句：

• I think the best technical people make the best supervisors. 我认为最好的技术人员可以成为最好的管理人员。 来自辞典例句
• Even the foremen or first-level supervisors have a staffing responsibility. 甚至领班或第一线的监督人员也有任用的责任。 来自辞典例句

10 jeopardy   

n.危险；危难

参考例句：

• His foolish behaviour may put his whole future in jeopardy.他愚蠢的行为可能毁了他一生的前程。
• It is precisely at this juncture that the boss finds himself in double jeopardy.恰恰在这个关键时刻，上司发现自己处于进退两难的境地。

11 contractor   

n.订约人，承包人，收缩肌

参考例句：

• The Tokyo contractor was asked to kick $ 6000 back as commission.那个东京的承包商被要求退还6000美元作为佣金。
• The style of house the contractor builds depends partly on the lay of the land.承包商所建房屋的式样，有几分要看地势而定。

12 generic   

adj.一般的，普通的，共有的

参考例句：

• I usually buy generic clothes instead of name brands.我通常买普通的衣服，不买名牌。
• The generic woman appears to have an extraordinary faculty for swallowing the individual.一般妇女在婚后似乎有特别突出的抑制个性的能力。

13 detector   

n.发觉者，探测器

参考例句：

• The detector is housed in a streamlined cylindrical container.探测器安装在流线型圆柱形容器内。
• Please walk through the metal detector.请走过金属检测器。

14 jabber   

v.快而不清楚地说；n.吱吱喳喳

参考例句：

• Listen to the jabber of those monkeys.听那些猴子在吱吱喳喳地叫。
• He began to protes,to jabber of his right of entry.他开始抗议，唠叨不休地说他有进来的权力。

15 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

16 interface   

n.接合部位，分界面；v.(使)互相联系

参考例句：

• My computer has a network interface,which allows me to get to other computers.我的计算机有网络接口可以与其它计算机连在一起。
• This program has perspicuous interface and extensive application. 该程序界面明了，适用范围广。

17 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。

18 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。

19 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