时间:2019-01-03 作者:英语课 分类:电信英语


英语课

  Channel


  A channel is a single communications path in a transmission medium connecting two or more points in a network, each path being separated by some means; e.g., spatial 1 or multiplex separation, such as frequency or time division multiplexing. "Channel" and "circuit" are often used interchangeably, however circuit can also describe a physical configuration 2 of equipment that provides a network transmission capability 3 for multiple channels. The characteristics of channels and circuits are determined 4 by the network equipment and media used to support them.


  Channel Service Unit (CSU)


  Channel Service Units (CSUs) and Data Service Units (DSUs) are required to connect digital customer premises 5 equipment (CPE) to carrier networks. A CSU is network channel terminating equipment (NCTE) attaching as CPE to telephone company's digital circuits, and protecting the network from harm. Other CSU functions include line conditioning and equalization, error control (e.g., bipolar signal violations), and the logical ability to respond to local and network loop back circuit testing commands. See Data Service Units (DSU).


  Circuit Associated Signaling


  Circuit Associated Signaling is a technique that uses the same facility path for voice and signaling traffic. Historically this approach was selected to avoid the costs of separate channels for signaling and because the amount of traffic generated by signaling is small compared to voice, minimizing the chance for mutual 6 interference. Circuit associated signaling can be contrasted with some common-channel signaling systems that use completely separate packet switched networks for signaling traffic.


  Circuit Switching


  Circuit switching is a process that establishes connections on demand and permits the exclusive use of those connections until released. Packet and message switching, primarily used in data communications networks are alternative switching techniques.


  City Wide Digital Centrex


  A city wide digital centrex is a capability to serve multiple business locations within a single NXX (exchange code), using multiple LEC central office Centrex switches. Outside callers are unaware 7 that multiple business locations are involved.


  CLEC


  Competitive Local Exchange Carrier, most commonly referred to as Competitive Local Exchange Carrier.


  CLLI


  Common Language Location Identifier


  CMIP


  common management information protocol 8


  Coaxial Cable


  Coaxial Cable (also called coax 9 cable or coax) consists of an insulated central conductor surrounded by a second cylindrical 10 conductor that is clad with an insulating sheath. The outer conductor usually consists of copper 11 tubing or copper braid.


  COC


  central office connections



adj.空间的,占据空间的
  • This part of brain judges the spatial relationship between objects.大脑的这部分判断物体间的空间关系。
  • They said that time is the feeling of spatial displacement.他们说时间是空间位移的感觉。
n.结构,布局,形态,(计算机)配置
  • Geographers study the configuration of the mountains.地理学家研究山脉的地形轮廓。
  • Prices range from $119 to $199,depending on the particular configuration.价格因具体配置而异,从119美元至199美元不等。
n.能力;才能;(pl)可发展的能力或特性等
  • She has the capability to become a very fine actress.她有潜力成为杰出演员。
  • Organizing a whole department is beyond his capability.组织整个部门是他能力以外的事。
adj.坚定的;有决心的
  • 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。
n.建筑物,房屋
  • 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。
adj.相互的,彼此的;共同的,共有的
  • We must pull together for mutual interest.我们必须为相互的利益而通力合作。
  • Mutual interests tied us together.相互的利害关系把我们联系在一起。
a.不知道的,未意识到的
  • They were unaware that war was near. 他们不知道战争即将爆发。
  • I was unaware of the man's presence. 我没有察觉到那人在场。
n.议定书,草约,会谈记录,外交礼节
  • 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。
v.哄诱,劝诱,用诱哄得到,诱取
  • I had to coax the information out of him.我得用好话套出他掌握的情况。
  • He tried to coax the secret from me.他试图哄骗我说出秘方。
adj.圆筒形的
  • huge cylindrical gas tanks 巨大的圆柱形贮气罐
  • Beer cans are cylindrical. 啤酒罐子是圆筒形的。
n.铜;铜币;铜器;adj.铜(制)的;(紫)铜色的
  • The students are asked to prove the purity of copper.要求学生们检验铜的纯度。
  • Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。
学英语单词
absorption reaction rate
abuse of law
acrobatic show
Aleksandrinka
Allo-PBSCT
application workspace
arbitrally
blinking method of stereoscopic viewing
brass watch case blank
Chilean tinamous
cixiid
clap-hand
common laburnum
compartment hot well
compartmentalised
conductivity
contra-cyclical measures
Coquimbo owl
cross platform
cyclotheric sedimentation
dc data set
determinable freeholds
diacetylurea
dicumarols
elasto-aerodynamics
erosional vacuity
erotematic
final thermomechanicaltreatment
Gamu
general most favoured nation clause
glory of the snow
green goodss
gyroso-
hally
haylee
hofners
hydrated stock
hyperthite
idiologism
in the jug
incidental cost
ioduretted
items sample
keep on trucking
kindjals
koevoets
laminated clay
Lasianthus formosensis
leveling off
macro-observation
magmatic circulation
marine windscreen
mGal, mgal
moisture measurer for sand and stone
muscle scars
N.C.
nbcc
nobeliums
nuclenoic
NuLab
on-state characteristic
peritoneal tap
phthioic acid
plate mangle
prends
prevention of collision
prolmon tablet
pyramidal cells
raw mast
reactor coolant system cold leg isolation valve
Regranex
relative-entropy
reliability index of generating system
risto
Rubus chiliadenus
sit down to
solti
standard reference materials
starch ester
static stability margin
stochastic procss
strict secrecy
stupiditarian
superior characters
switching pulse
symbiotic action
synedra undulata
synthetic nitrogenous fertilizer
systematic production of substitution lines
thuggish
total corneal transplantation
total variation decreasing scheme
Tuamarina
twin-screw conveyor
TWTA
ultraviolet radiations
unintentional nonlinearity
unquietous
wassily chair
wax string
y.m