[电子] 光电阴极光电管

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(122) / 评论(0) 分类 VOA2003(下)-环境与健康

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发表于:2018-12-01 / 阅读(83) / 评论(0) 分类 用Mp3背六级单词

TEXT Seen through the eyes of a young friend Einstein was a simple, modest and ordinary man. The professor and the Yo-yo My father was a close friend of Albert Einstein. As a shy young visitor to Einstein's home, I was made to feel at ease when Einst

发表于:2018-12-04 / 阅读(156) / 评论(0) 分类 大学英语精读第二册

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(104) / 评论(0) 分类 国家地理2008年

Science and technology. 科技。 Photoelectric cells. 光电池。 To dye for. 利用染料进行能量转化。 A new type of cell may bring solar energy indoors. 一种新型电池也许能带来室内太阳能。 THE phrase indoor solar power sou

发表于:2018-12-31 / 阅读(72) / 评论(0) 分类 经济学人科技系列

四六级阅读占考试的比重很大,很多考友也为阅读烦恼不已,该怎么办呢?两个字:多看! 所以,从今天开始,每天会节选一些文章和大家一起阅读。 接

发表于:2019-01-03 / 阅读(94) / 评论(0) 分类 阅读空间

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(104) / 评论(0) 分类 Scientific American(四)月

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(101) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(68) / 评论(0) 分类 VOA标准英语2008年(五月)

Al Gore accepted the Nobel Peace Prize in 2007 along with Rajendra Pachauri accepting on behalf of the UN's intergovernmental panel on climate change for their work to sound the alarm over global warming. The Six Nobel Prizes are traditionally awarde

发表于:2019-01-22 / 阅读(70) / 评论(0) 分类 自然百科2009年

Science and Technolgy. 科技。 Photoelectric cells. 光电池。 To dye for. 染料光电池。 A new type of cell may bring solar energy indoors. 一种新型电池有望将太阳能引进室内。 THE phrase indoor solar power sounds like an oxym

发表于:2019-01-26 / 阅读(76) / 评论(0) 分类 经济学人科技系列

But the landmark eventthe dawn of a new agecame in 1905, when there appeared in the German physics journal Annalen der Physik a series of papers by a young Swiss bureaucrat who had no university affiliation, no access to a laboratory, and the regular

发表于:2019-01-29 / 阅读(73) / 评论(0) 分类 万物简史

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(89) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(88) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(205) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(193) / 评论(0) 分类 趣味英语

Science and technology 科学技术 Photoelectric cells 光电池 To dye for 染料光电池 A new type of cell may bring solar energy indoors 一种新型电池有望将太阳能引进室内 THE phrase indoor solar power sounds like an oxymoron. 室内

发表于:2019-02-07 / 阅读(83) / 评论(0) 分类 经济学人科技系列

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(101) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(145) / 评论(0) 分类 英语新闻

Marie Curie was born in 1867. She is one of the greatest scientists ever to have lived. She was a pioneer in the field of radioactivity and discovered the chemical elements radium and polonium. Curie is the only person ever to win two Nobel Prizes in

发表于:2019-02-19 / 阅读(65) / 评论(0) 分类 世界名人简介
学英语单词
a matter for wonder
absence of nose
aden-abyan islamic armies
adverse party
Aelurostrongylus
Aerococcus
album canis
all-round automation
American Missionary Association
apex of hierarchy
Appin
atheriniform
bacillus urinae
battling out
BFC
biasines
bipotential
bongi
brownish black
cabrillac
ceiling pattern
chincoteague bay
configurals
cordtex
counter-strokes
crown scissors
cumulose deposit
degasification by vibration
dial telegraph
dicotyledonous
Download youtube
echoing
elasto-plastic deformation
electrolyte metabolism
Elzholz's mixture
embolic gastrulation
emergentisms
endocrinologic, endocrinological
enskied
equipment for collision avoidance
expectant move
exponential relation
ferruminate
gouging machine
hemorrhaging
hydroscopical
immedial maroon B
incompletely
inn-yards
instant stop type
Kulanak
laevotorsion
launching analysis
laundry trucks
left colic artery
liqour
lueger
lumets
mains outage
median income
modified design
Monotheletes
mooneye
musciform
myrtaceous trees
Naqadeh
Nitrosogloea membranacea
node (l.nodus)
nonneuropathic
normalization of fission source
Odoorn
once-pretty
Orixa japonica Tgunb.
pottier
preachifications
prediscoveries
read-only view
retarder by electric traction motor
reverberating circuit
schal
secundibrachus
shit-stirrings
silvering locus
sitasjaures
sixun
sliding-gear transmission
specific refrigerating effect
stanched
stochastic syntax analyzer
strip farm
Sulkhara
table word-processing equipment
teacosies
thread-cutting mechanism
tide mark
tkr
transp
turn-sheet
Twelve Mile L.
veaux
woodshedding
Zyloprim