脉波宽度调变

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(172) / 评论(0) 分类 疯狂英语2001年

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(96) / 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(371) / 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(158) / 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(93) / 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(92) / 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(114) / 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(117) / 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(126) / 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(106) / 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(95) / 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(127) / 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(102) / 评论(0) 分类 电信英语

注释: Security Council 安理会 unanimously [ju(:)5nAnimEsli] adv. 全体一致地 nuclear [5nju:kliE] adj.(核)核子的,原子能的 score [skC:] vt. 获得 diplomatic [7diplE5mAtik] adj. 外

发表于:2019-01-08 / 阅读(112) / 评论(0) 分类 VOA2004(上)--各类新闻

1. Washington is buried under a heavy blanket of snow. Roads are mostly impassable. President Obama has called the storm Snowmageddon. 2. Despite the blizzard, some people in D.C. did venture outside for a chance to play. Snowballs were flying in nor

发表于:2019-01-11 / 阅读(163) / 评论(0) 分类 美联社新闻一分钟2010(二月)

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(83) / 评论(0) 分类 TED演讲教育篇

Powell Defends US Stance on Iraq's WMD Nick Simeone The Bush administration is coming under renewed attack over whether its claim that Iraq possessed weapons of mass destruction was backed up by solid

发表于:2019-01-30 / 阅读(384) / 评论(0) 分类 VOA2004(上)--各类新闻

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(89) / 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(110) / 评论(0) 分类 英语新闻

A congressionally-mandated U.S. commission has released a report warning of a possible nuclear or biological attack somewhere in the world within five years. The report singles out Pakistan as the top security priority for the United States. VOA's D

发表于:2019-02-06 / 阅读(113) / 评论(0) 分类 VOA标准英语2008年(十二月)
学英语单词
accordion-based
antonyms
atmospheric turbidity
Austrian winter pea
automatic reel hub
average and range chart
Balkan League
bimetal rod
by tut
cana (spain)
cancel something out
changes in law and practice
claim agents
close in method
contact pattern
contiguous pair
cotentin peninsula
counterbonds
domestic animal transportation insurance
dougrays
duggar
East African province
el-sherbeeny
electronic power frequency control system
Escherichia paragrunthali
excessive steam pressure
exodic nerve
external pile
FCEV
finite filter length effect
flashquenching
Frei-Hoffman reaction
genetic psychology
Haiyān er Ruweibid
hang dyeing
Human Machine Interface
hypospermia
inrosidine
kaczmareks
lacquer varnish
laminar layer control
law of statistical constancy
lenticulothalamic
line leakage
loanings
Mahia
measure of linear correlation
meso-regional distribution of soils
method of redundant reaction
Microsoft Expression
mitre caisson
monsignor
moold
multiton patterns
national information control center
navigation warning broadcasts by radio telex service
New Orleanians
nitrative
nonarchitecture
normal monocardiogram
on lending
oscillogram trace reader
overdigestion
overdirects
pannus hepaticus
pelvic inflammatory disease
phosphor dot trio
protovirus theory
pseudocholinestrasedeficiency
push-pull control cable
quadripinnate
rail tank car
RDONLY
rhizophagy
rupture de pente
satellite network
scarlet hamelias
schweikardt
short-term exposure limit
sieve mesh number
soap plates cooling plant
sodium materials/devices
spell it
stone-works
substantive requirements of form
summercaters
tangential feed method grinding
Tattersall's
televoters
Tomes' process
toroidal liner
triangular trade
uncoupling device
upward social comparison
uterine cervixes
verification and checkout equipment
virom crosome
well-meriteds
work song
working liabilities
xanthopsy
Zinn