类比数位介面

Before Microsoft came along, there really was no software industry. It was just a few companies selling very high-priced software only to companies, big companies. The idea of low-cost software that w

发表于:2018-11-28 / 阅读(140) / 评论(0) 分类 疯狂英语2002年

PRI Primary Rate Interface 原速率接口 PSTN public switched telephone network 公众交换电话网 PTT Postal, Telegraph and Telephone 邮政,电报和电话 QOS quality of service 服务质量

发表于:2018-12-08 / 阅读(53) / 评论(0) 分类 电信英语

Windows PC is at the center of this digital revolution. And the way it connects up to everything else is very, very important to us. I mean vista here is a major milestone. It lets, the hardware partners we have do break through things. For example,

发表于:2018-12-11 / 阅读(48) / 评论(0) 分类 万花筒2007年

Starting in February 2009, broadcasts of all TV signals will be digital, replacing current analog signals. For people who have cable or satellite TV, this is a non-issue, because their reception will not be affected. But people who use rabbit ears or

发表于:2018-12-31 / 阅读(79) / 评论(0) 分类 365个英语简短小故事

Codec Codec is a contraction of coder and decoder; a device that encodes analog signals into digital signals, for transmission through a network in digital format, and decodes received digital signals

发表于:2019-01-03 / 阅读(79) / 评论(0) 分类 电信英语

PPSN public packet switched network Premises Distribution System (PDS) PDS is the transmission network inside a building or among a group of buildings, for example an office park or a campus. PDS is u

发表于:2019-01-03 / 阅读(66) / 评论(0) 分类 电信英语

I-MAC isonchronous media access controller IDN integrated digital network IEC International Electrotechnical Commission Impairments Impairments is the (e.g., transmission channel and signal impairment

发表于:2019-01-03 / 阅读(63) / 评论(0) 分类 电信英语

Frame In time division multiplexing systems, Frame is a sequence of time slots each containing a sample from one of the channels carried by the system. The frame is repeated at regular intervals, (nor

发表于:2019-01-03 / 阅读(72) / 评论(0) 分类 电信英语

D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in

发表于:2019-01-03 / 阅读(142) / 评论(0) 分类 电信英语

DSB Direct Satellite Broadcast 直接卫星广播 DSB Double SideBand 双边带 DSBRC Double SideBand Reduced Carrier 双边带减幅载波 DSBSC Double SideBand Suppressed Carrier 双边带抑制载波

发表于:2019-01-03 / 阅读(93) / 评论(0) 分类 电信英语

Analog - Transmitting information that is characterized by continuously variable quantities (such as with AM or FM). This is different from digital transmission, which is characterized by discrete bit

发表于:2019-01-03 / 阅读(117) / 评论(0) 分类 电信英语

CCCH Common Control CHannel 公用控制信道 电信英语及其缩略语解释(8) CCD Charge Coupled Device 电荷耦合器件 CCF Conditional Call Forwarding 有条件呼叫前转 CCH Connectio

发表于:2019-01-03 / 阅读(68) / 评论(0) 分类 电信英语

Hi, Im Becky Worley and this is Good Stuff. Its flu season and were more vigilant than ever about all the flues that are making around, when your kids are sick, you take their temperature, but thats easier said than done. The words Rattle thermometer

发表于:2019-01-06 / 阅读(106) / 评论(0) 分类 英语杂谈

Before Microsoft came along, there really was no software industry was just a few companies selling very high-priced software only to companies, big companies. The idea of low-cost software that would be empowering for individuals and that them could

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 实用英语

But what's new and hot today will be antiquated before you know it Ted Landphair | Washington, DC 23 June 2010 Millions of American adults might recall phonograph records, cameras with flashbulbs and telephones with rotary dials, but their children w

发表于:2019-01-13 / 阅读(59) / 评论(0) 分类 VOA标准英语2010年(六)月

Unit 23 Buying a watch(2) 第23课 买手表(2) The customer is looking for a watch. 顾客正在找他喜欢的手表。 S: Let me suggest this one. It's an excellent watch, it looks good, and it's only $100. 店员:我向您推荐这个。它是一

发表于:2019-01-14 / 阅读(135) / 评论(0) 分类 购物英语口语一本通

Science Fiction-style replications, as seen in TV shows like Star Trek, might be a step nearer to becoming reality. Digital technology means it's now possible to make 3D objects from downloaded designs. Our reporter Li Dong has the details. These fun

发表于:2019-01-19 / 阅读(68) / 评论(0) 分类 世界各地新闻集锦

Promoting connectivity and cooperation in informational communication between China and Africa is high on the agenda of this year's FOCAC Beijing Summit. The collaboration is being pushed greatly by a free digital television project of China in rural

发表于:2019-01-19 / 阅读(99) / 评论(0) 分类 2018CRI中国国际广播电台

To the surprise of exactly no one, Apples new generation of iPhones will not include a standard 3.5mm headphone input. The decision signals the demise of an audio port thats been used for more than 100 yearsand honestly, its about time. The death of

发表于:2019-02-06 / 阅读(98) / 评论(0) 分类 阅读空间

Estonian Government Aims to End Paperwork Three-day-old Oskar Lunde sleeps in a small bed at an Estonian hospital. Across the room, his father turns on a laptop computer. Now we will register our child, Andrejs Lunde says, as he lifts his identificat

发表于:2019-02-26 / 阅读(114) / 评论(0) 分类 2019年VOA慢速英语(一)月
学英语单词
acoustic detection and ranging (acdar)
Allium teretifolium
arm it
average static load per waggon
bend-gliding
callicarpas
Canin, Mte.
caput humerale
cargo tank boundary
carrier block
cat's ear
chromidial substance
circle
climp up
cloud portability
commitment fee
compounding in series
condensatus
core power distribution
cosmopolitanises
dewlike
DIHF
dindymenes
DIOZ
distressed
dock pump station
eight-thousand-dollar
endofjob
Entoloma lividum
euler criterion for residues
F. P. A.
fishing rod
fission heat
full sister
Gabor, Dennis
gladman
glycocholase
ground-zero
handwarmer
heavy chain of antibody
high-tensile steel bar
hilleberg
hispidum
hotbed chives
index of rural consumer prices
kintours
KMER
knuckle end
Lake District
legitimate interests
lesser high water
Light Displacement Tonnage
lime slurry treatment for acid waste
manualising
mark wayne clarks
McClain County
model aeroplane
mosses
multigluon
multiparous women
N/B
nasal douohe
Negatol
Neil Armstrong
nitrosoh(a)emoglobin
non-reactive tuberculosis
p-nitroazobenzene
pavement patching
pit furnace
planimetric arm
potentilla fulgens wall.
pressure surge
price is right
procedure subprogram
push to talk switch
quadriparas
Quercus kongshanensis
required freight rate
rosenau
segmentof a cylinder
serological characteristics
shikses
simulation of manned system
sodium metatungstate
starts out
steeply pitching seam
telefaxes
terabromide
them-selves
transformerless
true hacker
understumble
unforbade
uroptychus bispinatus
vacuum switch
vermunt
Viola pedata
vitreous clinker
Washington (National) Monument
waterlemon
weyl-minkowski theorem
zinging