电信专业英英词典R

 

　　RAO

　　Revenue Accounting¹ Office

　　RBHC

　　Regional Bell Holding Company

　　RBOC

　　Regional Bell Operating company

　　RBS

　　robbed bit signaling

　　Regional Bell Holding Company (RBHC)

　　RBHC is one of 7 regional companies created by the AT&T divestiture² to assume ownership of the Bell operating companies. They are Ameritech, Bell Atlantic, Bell South, NYNEX, Pacific Telesis, Southwestern Bell and US West.

　　Repeater

　　In digital transmission, a repeater is equipment that receives a pulse train, amplifies³ it, retimes it, and then reconstructs the signal for retransmission. In IEEE 802 local area network (LAN) standards, a repeater is essentially⁴ two transceivers joined back to back and attached to two adjacent LAN segments. See transceiver.

　　RFC

　　request for comment

　　RFE

　　Request for Engineering

　　RFI

　　radio frequency interference

　　RFP

　　request for proposal

　　RF

　　radio frequency

　　Routers

　　In IEEE 802 local area network (LAN) standards, routers are devices that connect autonomous⁵ networks of like architecture at the network layer (layer 3). Unlike a bridge which operates transparently⁶ to communicating end-terminals at the logical link layer (layer 2), a router reacts only to packets addressed to it by either a terminal or another router. Routers perform packet (as opposed to frame) routing and forwarding functions; they can select one of many potential paths based on transit⁷ delay, network congestion⁸ or other criteria⁹. How routers perform their functions is largely determined¹⁰ by the protocols¹¹ implemented¹² in the networks they interconnect.

　　RSU

　　remote switching unit

　　RBOC - Regional Bell Operating Company. In December 1983, a federal judge ordered AT&T to divide their 22 telephone companies into seven regional operating companies. The United States Department of Justice placed several restrictions¹³ on the RBOCs: they were not allowed to provide long distance, equipment manufacturing, or information services.

　　RED - Rural Economic Development. A program administered by TDS Telecom and other phone companies which includes advocating for rural development funding at the Federal and State levels. This program is designed to support local companies’ efforts with economic development projects in their communities.

　　Redundant¹⁴ Connectivity - A system of backup connections that ensures the network will continue functioning even if a problem is encountered on one of the connections.

　　Router - Highly sophisticated systems that connect local area networks (LANs).

　　RUS - Rural Utilities Service. The RUS is an agency of the United States Department of Agriculture. It’s a source of financing and technical assistance for rural telecommunication¹⁵ systems.

1 accounting   

n.会计，会计学，借贷对照表

参考例句：

• A job fell vacant in the accounting department.财会部出现了一个空缺。
• There's an accounting error in this entry.这笔账目里有差错。

2 divestiture   

n.剥夺

参考例句：

• The court found divestiture to be necessary in preventing a monopoly.法庭发现在防止垄断方面进行资产剥离是必要的。
• Rapid progress was made in the divestiture of radio paging assets from the P & T sectors and the restructuring on a nationwide basis.全国邮电无线寻呼资产剥离、改制重组工作取得了较大进展。

3 amplifies   

放大，扩大( amplify的第三人称单数 )； 增强； 详述

参考例句：

• Gain is the number of times the amplifier amplifies a signal. 增益就是放大器放大信号的倍数。
• Such panicky behaviour amplifies the impact of the Russian export ban. 这样的恐慌行为放大了俄罗斯小麦出口禁令的影响效应。

4 essentially   

adv.本质上，实质上，基本上

参考例句：

• Really great men are essentially modest.真正的伟人大都很谦虚。
• She is an essentially selfish person.她本质上是个自私自利的人。

5 autonomous   

adj.自治的；独立的

参考例句：

• They proudly declared themselves part of a new autonomous province.他们自豪地宣布成为新自治省的一部分。
• This is a matter that comes within the jurisdiction of the autonomous region.这件事是属于自治区权限以内的事务。

6 transparently   

明亮地，显然地，易觉察地

参考例句：

• "Clearly plots,'said Jacques Three. "Transparently!" “显然是搞阴谋，”雅克三号说，“再清楚不过了。” 来自英汉文学 - 双城记
• All design transparently, convenient for the file identification inside the bag. 全透明设计，方便袋内文件识别。

7 transit   

n.经过，运输；vt.穿越，旋转；vi.越过

参考例句：

• His luggage was lost in transit.他的行李在运送中丢失。
• The canal can transit a total of 50 ships daily.这条运河每天能通过50条船。

8 congestion   

n.阻塞，消化不良

参考例句：

• The congestion in the city gets even worse during the summer.夏天城市交通阻塞尤为严重。
• Parking near the school causes severe traffic congestion.在学校附近泊车会引起严重的交通堵塞。

9 criteria   

n.标准

参考例句：

• The main criterion is value for money.主要的标准是钱要用得划算。
• There are strict criteria for inclusion in the competition.参赛的标准很严格。

10 determined   

adj.坚定的；有决心的

参考例句：

• I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
• He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。

11 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

12 implemented   

v.实现( implement的过去式和过去分词 )；执行；贯彻；使生效

参考例句：

• This agreement, if not implemented, is a mere scrap of paper. 这个协定如不执行只不过是一纸空文。 来自《现代汉英综合大词典》
• The economy is in danger of collapse unless far-reaching reforms are implemented. 如果不实施影响深远的改革，经济就面临崩溃的危险。 来自辞典例句

13 restrictions   

约束( restriction的名词复数 )； 管制； 制约因素； 带限制性的条件（或规则）

参考例句：

• I found the restrictions irksome. 我对那些限制感到很烦。
• a snaggle of restrictions 杂乱无章的种种限制

14 redundant   

adj.多余的，过剩的；(食物)丰富的；被解雇的

参考例句：

• There are too many redundant words in this book.这本书里多余的词太多。
• Nearly all the redundant worker have been absorbed into other departments.几乎所有冗员，都已调往其他部门任职。

15 telecommunication   

n.电信，远距离通信

参考例句：

• Telecommunication is an industry of service.电信业是一个服务型的行业。
• I only care about the telecommunication quality and the charge.我只关心通信质量和资费两个方面。