声光调制器

Maurice Ravel was born in 1875 in a little village in southern France near the Spanish border. His father was Swiss and his mother was Basque. Ravel's devotion to his mother bordered on the 1)obsessiv

发表于:2018-11-28 / 阅读(169) / 评论(0) 分类 疯狂英语2001年

STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. Today we tell about the history of radio and the latest technology. (MUSIC) SHIRLEY GRIFFITH: Our story begins in Britain in eighteen seventy-three. A scientist named James Max

发表于:2018-12-01 / 阅读(100) / 评论(0) 分类 2010年VOA慢速英语(十二)月

It's got to be philanthropic, because profits distract biotech, 这些研究的钱的来源最好是慈善,因为利润会分散生物技术研究公司的注意力, but it's basically got a 90 percent chance, I think, of succeeding in this. 但我

发表于:2018-12-05 / 阅读(91) / 评论(0) 分类 TED演讲科学篇

Unit 8 The Media In-Class Reading It's Radio! The medium that can turn anywhere into somewhere 1 The truth is that radio has not been eclipsed by television and cable and the Internet. In fact, radio

发表于:2018-12-18 / 阅读(366) / 评论(0) 分类 新编大学英语阅读部分

On January 11, Norway became the first country to begin turning off signals from its FM radio network. The Norwegian stations will instead use only digital audio broadcasting, called DAB. FM, or frequency modulation, radio stations have been in opera

发表于:2019-01-02 / 阅读(154) / 评论(0) 分类 2017年VOA慢速英语(一)月

Compatible - When one object can be used interchangeably with another. Composite Baseband - The unclamped and unfiltered output of the satellite receiver's demodulator circuit. It contains all of the

发表于:2019-01-03 / 阅读(89) / 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(85) / 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(110) / 评论(0) 分类 电信英语

Enhanced Data rates for GSM Evolution, or EDGE, is a digital mobile phone technology which acts as a bolt-on enhancement to 2G and 2.5G General Packet Radio Service (GPRS) networks. This technology wo

发表于:2019-01-03 / 阅读(113) / 评论(0) 分类 电信英语

Abort - To stop doing something. Particularly, to exit a software program or stop receiving or sending a message. Access - (1) (verb) to get use of something, or (2) (noun) refers to a particular leve

发表于:2019-01-03 / 阅读(119) / 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(104) / 评论(0) 分类 电信英语

DM Delta Modulation 增量调制 DMA Direct Memory Access 直接存储器访问 DMF Dispersion Managed Fiber 色散管理光纤 这种光纤有带正、负色散区段,如同线路光纤延展敷设,

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 电信英语

DOD Direct Outward Dialing 直拨外线 DOS Disk 0perating System 磁盘操作系统 DOV Data Over Voice 话上数据 DP Data Processing 数据处理 DP Detection Point 检测点,探测点 DP Dial/

发表于:2019-01-03 / 阅读(122) / 评论(0) 分类 电信英语

APCM Adaptive Pulse Code Modulation 自适应脉码调制 APCM是在PCM基础上,采用量化自适应,使均方量化误差最小的一种调制方法。 APD Avalanche Photo Diode 雪崩光电二极

发表于:2019-01-03 / 阅读(99) / 评论(0) 分类 电信英语

The Nobel Prize in physics goes to Charles Kao, of Standard Communications Labs in England and the Chinese University of Hong Kong, and George Smith and Willard Boyle of Bell Labs in New Jersey. Kao figured out how to transmit light over long distanc

发表于:2019-01-08 / 阅读(130) / 评论(0) 分类 Scientific American(十)月

But modulation networks are also activated that deliver endorphins and enkephalins, 不过调制网络也被唤醒,去传递安多芬和脑啡肽, chemicals released when you're in pain or during extreme exercise, creating the runner's high. 这些

发表于:2019-01-17 / 阅读(76) / 评论(0) 分类 TED演讲教育篇

For such an internet-focused event, a fast enough internet access is surely a top priority. Ge Wei, head of Wuzhen Tourism Co., Ltd., said over 3,000 new WI-FI hotspots have been installed making internet surfing in the township a fantastic experienc

发表于:2019-01-19 / 阅读(83) / 评论(0) 分类 2015CRI中国国际广播电台

Nobel Prize in Physics The 2009 Nobel Prize in physics goes to Charles Kao of Standard Communications Labs in England and the Chinese University of Hong Kong for the invention of practical optical fiber communication, and George Smith and Willard Boy

发表于:2019-01-30 / 阅读(134) / 评论(0) 分类 60秒科学

An end to grey hair and crows-feet could be just 10 years away after scientists showed 科学家发现,动物的衰老过程有可能逆转。 it is possible to reverse ageing in animals. 从此以后,可能仅需10年,人类就可以告别白发

发表于:2019-02-01 / 阅读(83) / 评论(0) 分类 趣味英语

BEIJING, July 26 (Xinhua) -- A research team led by Chinese scientists have discovered dietary modulation of gut microbiota can alleviate both genetic and simple obesity in children. The findings of the team, led by Zhao Liping with Shanghai Jiaotong

发表于:2019-02-02 / 阅读(102) / 评论(0) 分类 英语新闻
学英语单词
acetars
Akankohan
anisopleural
annular tapered roller bearing
Ascona
baby doctor
backing pulley
baie verte
basic non-feasible solution
Briton
bush hammers
catch by the heels
center crank
center shaft
Ceskoslovenska
chain type transfer bed
crab slewing mechanism
cryptic contamination
crystal-tetrode mixer
Deer River
digital magnetic record
divitism
dose build-up factor
earnestful
economic tribunal
elastic bond
electronic leather area measuring machine
ferdaus
fixed gantry crane
flexible imaging boundle
flicking
floating concrete mixing plant
fluidus
frequently used data
full functor
fuzzy software
generific
glyceritum guaiaci
GMAN
got that
Gothicky
grisy
headhunters
higher-temperature
Idrossimicina
in term of
interest table
intraocular pressures
jolle
Kritsa
land transportation receipt
layendecker
lenticula
lrregular
lubin'
macro-domal prism
melchites
mild oxidation
millimeter(wave)laser
non-farmings
not-busy interrupt
nothing but
oxycalorimeter
oxytropis tragacanthoides fisch.
polanret microscope
Polyaigos, Nisos
practice in
principal dock
pyelocaliectasis
rail-section
rankins
rate of productivity
re definition
re execution
rebarter
rechecks
redemptionaries
resource-unavailable
Salix moupinensis
secret of Polichinelle
semi-controlled
shepherd
shove joint
showyll
size-zero
softlander
sonic precipitator
spesmilo
synchronous detecter
Tankan
Tasbeha
thou-shalt-nots
United States Nuclear Regulatory Commission
Unna staining
usneoides
victorian ages
watergate
wookey
working expenses
World Customs Organization
Yahagi-gawa
Yushania grammata