[通信] 空间无线电通信

When Scotsman Alexander Graham Bell invented the telephone in 1876, it was a revolution in communication. For the first time, people could talk to each other over great distances almost as clearly as if they were in the same room. Nowadays, though, w

发表于:2018-12-07 / 阅读(59) / 评论(0) 分类 英文杂志-Magazine

THE MAKING OF A NATION - American History: The Space Race STEVE EMBER: Welcome to THE MAKING OF A NATION American history in VOA Special English. Im Steve Ember. (SOUND: Radio signals from Sputnik) On a cold October day in nineteen fifty-seven, the S

发表于:2018-12-07 / 阅读(50) / 评论(0) 分类 2011年VOA慢速英语(九)月

Space aliens and extraterrestrials have long been popular subjects of Hollywood movies and science fiction literature. But the idea of intelligent life in outer space is no longer limited to fiction. For the last 50 years, scientists and astronomers

发表于:2018-12-08 / 阅读(64) / 评论(0) 分类 VOA标准英语2010年(十一)月

Callum: Hello, today in Talk about English we have the fifth programme in our series on culture and communication. Today Marc Beeby looks at the topic of non-verbal communication communication without language. People from different cultures speak d

发表于:2018-12-11 / 阅读(86) / 评论(0) 分类 英语讨论

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(85) / 评论(0) 分类 英语小短文

[00:-1.00]Learning to learn Listening Part C [00:-2.00]How Good Are You? [00:-3.00]1 Listen to four dialogues.Match the dialogues with the places. [00:-4.00]Unit 4 Cyberspace Warm-up [00:-5.00]Lesson 13 [00:-6.00]Listen to four experts.which predicti

发表于:2018-12-13 / 阅读(142) / 评论(0) 分类 高中英语北京必修模块

We have bigger houses and smaller families; more conveniences, but less time; we have more degrees, but less common sense; more knowledge, but less judgement; more experts, but more problems; more medicine, but less wellness. We have multiplied our

发表于:2018-12-18 / 阅读(38) / 评论(0) 分类 白领英语晨读

Voice 1 Welcome to Spotlight. Im Robin Basselin. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 It is the fourteenth of Oct

发表于:2018-12-19 / 阅读(35) / 评论(0) 分类 环球英语 Spotlight

Mobile phones by Craig Duncan When Scotsman Alexander Graham Bell invented the telephone in 1876, it was a revolution in communication. For the first time, people could talk to each other over great distances almost as clearly as if they were in the

发表于:2019-01-02 / 阅读(111) / 评论(0) 分类 英语音频杂志

EXPLORATIONS - 1961: Telling Mission Control 'Light This Candle,' Alan Shepard Is Launched Into SpaceBy Marilyn Christiano and Frank Beardsley Broadcast: Wednesday, July 26, 2006 VOICE ONE: This is St

发表于:2019-01-02 / 阅读(46) / 评论(0) 分类 2006年慢速英语(七)月

PEOPLE IN AMERICA - Radio Pioneers Pulled Words, Music and World Events Out of Thin AirBy George Grow Broadcast: Sunday, February 26, 2006 (MUSIC) VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Stev

发表于:2019-01-02 / 阅读(55) / 评论(0) 分类 2006年慢速英语(二)月

Have Scientists Discovered a Radio Space Shield? Space, it turns out, is not a very safe place for electronic devices. High-energy space particles can cause serious problems for satellites and electronic equipment, even on the Earths surface. These p

发表于:2019-01-03 / 阅读(87) / 评论(0) 分类 2017年VOA慢速英语(十一)月

By Jessica Berman Washington 14 June 2007 Flight controllers in Moscow have been able to establish contact with critically important computers aboard the International Space Station. The computers that control among other things oxygen and water supp

发表于:2019-01-07 / 阅读(114) / 评论(0) 分类 2007年VOA标准英语(六月)

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(121) / 评论(0) 分类 英语小短文

We have bigger houses and smaller families; more conveniences, but less time; we have more degrees, but less common sense; more knowledge, but less judgement; more experts, but more problems; more medicine, but less wellness. We have multiplied our p

发表于:2019-01-08 / 阅读(47) / 评论(0) 分类 英语美文

We have multiplied our possessions, but reduced our values. We talk too much, love too little and lie too often. We've learned how to make a living, but not a life; we've added years to life, not life to years. We have taller buildings, but shorter t

发表于:2019-01-11 / 阅读(74) / 评论(0) 分类 阅读空间

> 38 信息和通讯技术的发展使人们广泛运用互联网成为可能 DATE=4-23-01 TITLE=DEVELOPMENT REPORT - Community Broadcast Radio BYLINE=Gary Garriott (Start at 59

发表于:2019-01-30 / 阅读(438) / 评论(0) 分类 科技之光

Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u

发表于:2019-02-06 / 阅读(86) / 评论(0) 分类 经济学人科技系列

Communication in and around the Haitian capital Port-au-Prince is at a standstill after Tuesday's devastating earthquake. With cell phone service and landlines down, Haitians around the world are seeking out any means possible to reach their families

发表于:2019-02-08 / 阅读(77) / 评论(0) 分类 VOA标准英语2010年(一月)

When you wake up Turn the radio on And you'll hear this simple song That I made up That I made up for you When you're driving Turn the radio up Cause I can't sing loud enough Hard these days To get my message through If time is all I have I'll waste

发表于:2019-03-04 / 阅读(102) / 评论(0) 分类 英文摇滚歌曲
学英语单词
adieu
aerogenic pathogen
aggregative planning
american larches
Animikie
antisymmetrize
aphthae tropicae
atomic data
atrium cordis
b/l to be issued at
benzenetetrabromide
big blue r.
bio-available
Blennius pholis
block sugar
boiler heating surface
button-front
calcitic dolomite
change gear unit
Chiritopsis mollifolia
chuggings
coastel
competing flora
crankcase
crime of interfering with election
cylindrical nose
data-time group (dtg)
decidua marginalis
demonstration jack
dialing back
diethyl arsinic acid
dipped ring
discov
Diuranthera inarticulata
drawing back
durous
ease-of-doing-business
effective atmospheric transmission
elasticity
element or
exponential absorption law
fly-by wire
Frankfurt-an-der-Oder
gallerygoer
garabito
gerres argyreus filamentosus
going fire
gulf wars
imbabura cotton
imries
inductance approach switch
intra-industries
intrinsic weight
isobases
Juncus L.
jut-window
kidney-form
lean gas riser
Leptochariini
lig. collaterale fibulare
lingueme
literal addressing
loading adapter
Loisy-sur-Marne
low rent house
magistra
magnetically-confined plasma
metal raceway
multikilowatt
multitone circuit
neutral buoyancy test
newsbeats
offlicence
operative part of a deed
optical sight cage knob
orographically
pentatomic
permanent stores
policy scientist
POLYMN
postwhistle
pupping
ramless extrusion
Rapid fast dyes
rear hospital
reckoneth
rhizoxin
rigid frame bridge
risk of loss
secondary seal(ing) unit
socking pit clamp
storage production vessel
strobe gate
subordinances
supervisory programs
Surbiton
Tarasivka
thallium(i) sulfate
threadbarer
three dB bandwidth
una corda
unbesmeared