[网络] 积分型模拟数字转换

Food writer T. Susan Chang once embraced the digital age. She even met her husband and bought a house on the Internet. Now, though, she believes in the benefits of an analog, lower-tech lifestyle. I believe in mystery. I believe in family. I believe

发表于:2018-12-19 / 阅读(126) / 评论(0) 分类 2007年NPR美国国家公共电台

This Cell Phone Needs No Battery 不用电池的新型手机? A dying battery is a huge annoyance for cell phone users. But for engineers? It's inspiration. Can we design a smartphone which can make a phone call and have a conversation without the

发表于:2018-12-24 / 阅读(115) / 评论(0) 分类 2017年科学美国人(七)月

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(138) / 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(142) / 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(130) / 评论(0) 分类 电信英语

发表于:2019-01-03 / 阅读(135) / 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(121) / 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(138) / 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(211) / 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(201) / 评论(0) 分类 电信英语

DCC Data Country Code 数据国家号码(3位) DCC Digital Cross Connect 数字交叉连接 DCCE Digital Cell Center Exchange 数字小区中心交换机 DCCH Dedicated Control CHannel 专用控制信道

发表于:2019-01-03 / 阅读(148) / 评论(0) 分类 电信英语

By Craig McCulloch Vancouver 13 May 2006 In February of 2009 all television stations in the United States are required to convert to digital transmission. This move will bring an end to traditional an

发表于:2019-01-04 / 阅读(189) / 评论(0) 分类 2006年VOA标准英语(五月)

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(164) / 评论(0) 分类 英语杂谈

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(121) / 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(199) / 评论(0) 分类 购物英语口语一本通

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(159) / 评论(0) 分类 2018CRI中国国际广播电台

By Craig McCulloch Las Vegas 18 April 2007 Leaders in the U.S. broadcast industry are discussing new technologies and trends at the annual meeting of the National Association of Broadcasters in Las Vegas,Nevada. As Craig McCulloch reports, HD Radio,

发表于:2019-02-05 / 阅读(173) / 评论(0) 分类 2007年VOA标准英语(四月)

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(170) / 评论(0) 分类 阅读空间

英语四级真题阅读长难句分析(9) 30. Al Gore calls global warming an inconvenient truth, as if merely recognizing it could put us on a path to a solution. (2008年6月) 【分析】本句为复合句。主句为Al Gore calls global warm

发表于:2019-02-19 / 阅读(116) / 评论(0) 分类 大学四六级阅读

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(189) / 评论(0) 分类 2019年VOA慢速英语(一)月
学英语单词
alephnull
aminoaldohexose
ascaron
asset information aggregation
atmx
baselateral
basque homeland and freedoms
beautifier
bolixed
bond fund
camber distribution
canales nutricius ossis
Canguaretama
cement needle
cement sewer pipe
chagreen
checking of routing
Chuayffet
colovaginal
concussing
creamy
dealerresponsetoreferral
displacement of piston
distopia
double bladder
double-insulated
douchewagon
enhale
extemporaneous speaking
extra-atmospheric space
febris glandularis
fish shashlik
flushtype
frame-story
fraziest
frien
fuffed
give sb the push
glycohydrolysis
golick
haloxylon ammodendron (meye)bge.
heat run
highly recommended
HPQ
ImageShack
interface organization
ipswiches
iron nitride
issuing administration
izard
Janus-headed
john wesleys
kaskinen (kask?)
Land, Edwin herbert
line key
lower arc
Malacas
mapping pen
marcus-gunn syndrome
maxillary expansion
molto adagio
Monach Is.
nitre oven
nonbiogenic
nucleic acid synthesis
okayly
order spirochaetaless
Pangasinan province
parallel detection system
pentabromides
periodic acid-Schiff's stain
Phalaenopsis stobartiana
pocketed oil
priestisms
psychedelicss
rabbit burrow
ramus hyomandibularis
repositories
revelationist
Saxifraga kongboensis
segnity
sell a dead duck
shop fabricated parts
shos
sinicizes
sir bernard law montgomeries
stage of development
stomocnidae nematocyst
subsoiling
switching circuitry
Tanta
tethered buoyant platform
trichadenotecnum obsitum
triethylenediamines
turbanless
uneps
unstable crack growth
uretercystoscopy
vagabondical
VHF and UHF direction finder
xbow
ye gods