色度信号解调

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(166) / 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(87) / 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(362) / 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(145) / 评论(0) 分类 2017年VOA慢速英语(一)月

Delay - This is the wait time between to specific events, and regarding satellite communications, it is the time it takes for a signal to go from the transmission station up to orbit and through the s

发表于:2019-01-03 / 阅读(90) / 评论(0) 分类 电信英语

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(84) / 评论(0) 分类 电信英语

Microwave In telecommunications, microwaves are frequencies above 1 GHz. MIPS million instructions per second Modems (MOdulator/DEModulators) Modems are devices that transform digital signals generate

发表于:2019-01-03 / 阅读(69) / 评论(0) 分类 电信英语

Focal Length - Distance from the exact center of the dish to the center of the feed. Focal Point - The physical point in space toward which the satellite reflector dish directs the received signal so

发表于:2019-01-03 / 阅读(105) / 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(106) / 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(108) / 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(114) / 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(84) / 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(90) / 评论(0) 分类 电信英语

Electric Shocks, Not Drugs, Help A Brain Disease 一种电刺激而非药物可以帮助治疗大脑疾病 From VOA Learning English this is the Health Report. Modern medicine mainly uses drugs to cure disease. But what if drugs were replaced with el

发表于:2019-01-12 / 阅读(55) / 评论(0) 分类 2014年VOA慢速英语(六)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(71) / 评论(0) 分类 TED演讲教育篇

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(78) / 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(98) / 评论(0) 分类 英语新闻

BEIJING, March 13 (Xinhua) -- Both China and U.S. signaled that the world's two biggest economies should explore a road of new-type relations. The new type of relations between major powers should be based on mutual respect, cooperation and seeking w

发表于:2019-02-03 / 阅读(102) / 评论(0) 分类 英语新闻

the previous show Don and Yael discussed communication from other worlds. Well, as it turns out if E.T. does try to phone it will be much more complicated than can you hear me now? D: Okay, Yael, so suppose one day scientists pick up a transmission t

发表于:2019-02-23 / 阅读(85) / 评论(0) 分类 英语时差8,16

E. T. Phoned. Now What? 外星人来电 Suppose one day scientists pick up a transmission they think is generated by alien s . Now what? Do we build a landing strip and break out the welcome wagon? Well heres the thing about picking up alien broadcas

发表于:2019-02-24 / 阅读(95) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
active experiment
adreamed
Alcare
american chemical society(acs)
anal valve
artificial light filter
bamaluzole
bodo-garoes
bouchees
bream b. (whangarei b.)
brought into focus
C. difficile
Carradale
cephalosporin N
community citizen governance model
Copenhagen blues
cwru
cystocercous cercaria
data-reduction system
debugging facility
decaliters
deep-pockets
dimension style
discharge electrode
doore
doorjambs
double diaphragm method
drill chip
EGDF
elastic scatter
election-law
even rule
eyelash sign
felsic minerals or component(c.i.p.w.)
fetal tranfusion syndrome
filter-feeds
fistulo-jejunostomy
forage mite
freedom from taxation
Gaussian complex integers
Gaybraham
Guchin-Us
Hamitabat
hand-operated traverser
heat lightening
Helen Springs
homolovi
hubble space telescope (hst)
inspector accuracy
kylins
lignin number
linear combinations
log body
low-salt
Lower Southampton
macrocategories
magnol
mercuric chloride
militarylike
mobil
multiphase circuit
multiple purpose
mylabris radix asparag
named port
natural chain elongation
non-data-ink
nuclear-thermal rockets
octadecadienoate
Okwésé
operator sequence
optimal output
outsurviving
personal factor
pesth
plate rectification
polyetiological theory
posterior palatine canal
power distributor
programmer-defined scalar type
put forward a theory
Radivoj
reposit in
Reszke, Edouard de
Rickenbacker, Edward Vernon
rosenbergs
second quartile or median
self-build society
sensuous
soliloquacity
spacer bar
Tasman Peninsula
ten-frame-hive
trichosuruss
triple-pole switch
trophic analysis
tulip ear
uncontrolled liberty
vena genus
water wet reservoirs
whoop things up
winnsboro
yielding of springing support