酸性电解质燃料电池

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(143) / 评论(0) 分类 VOA2003(下)-环境与健康

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(117) / 评论(0) 分类 VOA2003(上)-科技导航

Lesson 84 The Busy Bee 第84课 勤劳的蜜蜂 Have you ever seen a hive of bees? 你有没有看到过蜂箱? Some hives are made with glass sides, through which we can see all that the bees are doing. 有些蜂箱的侧面是玻璃的, 你可以透过

发表于:2018-12-18 / 阅读(48) / 评论(0) 分类 英国学生科学读本

模仿文本: That was a headline on September 5th, the end of the concept of junk DNA. Actually, geneticists had long abandoned the idea that our genomes are riven with all the rubbish. But what was once called junk was largely still unexplored. 译

发表于:2018-12-28 / 阅读(79) / 评论(0) 分类 英音模仿秀

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(117) / 评论(0) 分类 国家地理2008年

《绝望主妇》原句: We have to get rid of the car. But we cant sell it. The police might find it, and there could be DNA. 单词词组讲解 Get rid of sth/somebody 摆脱 发音讲解 Get rid of 的t吞音,d连读 最后翻译: 我们必须把

发表于:2018-12-31 / 阅读(103) / 评论(0) 分类 小紫带你轻松学美剧

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 火星生命

SCIENCE REPORT — February 7, 2002: Fuel Cell Cars By Mario Ritter This is the VOA Special English SCIENCE REPORT. The United States Secretary of Energy, Spencer Abraham, has announced a program to d

发表于:2019-01-02 / 阅读(82) / 评论(0) 分类 科技之光

EXPLORATIONS -February 27, 2002: Fuel Cell Cars By Mario Ritter VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a

发表于:2019-01-02 / 阅读(100) / 评论(0) 分类 Explorations

Glucosamine - a glucose or galactose molecule with an amine group attached. see also glucuronic acid. Glucose - a molecule of great importance to life as it provides a ready source of energy for both

发表于:2019-01-03 / 阅读(95) / 评论(0) 分类 医务英语

Breaking news out of Taxas BigFoot is real according to a group of researchers.They call themselves the Sasquatch genome project and they released what they say is proof several never before seen short video clips of the legendary and very shy creatu

发表于:2019-01-07 / 阅读(94) / 评论(0) 分类 万花筒2013年

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science, Im Steve Mirsky. Got a minute? Biologists often attempt to construct a genealogy that shows the relationships of all life on earth. One well-accepted effort compares the nucleic acid sequences that cod

发表于:2019-01-08 / 阅读(97) / 评论(0) 分类 Scientific American(五)月

Acid 酸 Why does the lemon taste sour? 为什么柠檬的味道很酸? It is because of the acid in a lemon. 因为柠檬里有酸。 Then what is acid? 那么什么是酸? All substances with a sour taste are kinds of acid. 所有带酸味的物质

发表于:2019-01-10 / 阅读(83) / 评论(0) 分类 与美国小学生一起学英文第12册

建筑设计师们像自然借鉴灵感的创意比比皆是,比如著名的悉尼歌剧院,比如北京奥运会的主场馆鸟巢。可是你想象过,自然界的有丝分裂能带给设计师什么灵感吗?可不是什么长得像DNA一样

发表于:2019-01-18 / 阅读(73) / 评论(0) 分类 名人演讲视频

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 year

发表于:2019-01-22 / 阅读(75) / 评论(0) 分类 自然百科2008年

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(179) / 评论(0) 分类 60秒科学

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(114) / 评论(0) 分类 科技之光

模仿文本: The Mona Lisa is gazed at by an average of 6 million people a year. Now scientists think they may have found the final resting place of Leonardo da Vinci's muse for the picture, and they want to open her grave to carry out DNA tests.

发表于:2019-02-16 / 阅读(85) / 评论(0) 分类 英音模仿秀

一条巷子,五户人家,外加八婆和熟女,就组成了全美收视冠军:Desperate Housewives。这部美剧不仅剧情跌宕起伏、帅哥美女遍地,而且还有很多地道的英语表达,我们一起来学习吧! 1. The bank

发表于:2019-03-02 / 阅读(93) / 评论(0) 分类 英语口语
学英语单词
acetic oxide
air mail
an apology for
anonymous proxy
arm waiter
arrobas
Ascriptin
Askol'd, Banka
Baliapal
be in a fume
bell animalcule
Beringov Proliv(Bering Str.)
beta-Leonhardite
binary multiplication rule
blasting machine rheostat
Bulldog market
buproprion
Camelina microcarpa
capneic
carcels
cde
checked beetle
chimishliya (cimislia)
coal preheating process
commuted pension gratuity
control flow diagram
costeaning
costigan
critical step
cyan chloride
deer-stealers
deposit back arrangement
Ditscheid
dosimeters
double linked rings
dry electrolytic rectifier
effeciency of radiator
exoenzymatic
filter element
free in and out of trucks
garnished wages
gas analyser
get wrong
ginapect
glider bomb
guides
H. P. R.
HP cylinder
Iferouane
imbecilities
internal loss torque
jesrerin
Joliot-Curie, Jean Frederic
jumping on
kenbridge
khalizad
Kildonan
Kolsva
Lapurol
leading article
living organism
lordes
magnetify
Manganotapiolite
microparts
Mombercelli
Mountain View
multiliteracies
neutral-flame
neutrosophic logic
norman bethune
nucleonic transversal momentum
olla podrida
One's tongue is too long for one's teeth.
operation.critical
parametric and nonparametric classification
phonotypes
protometabolism
quarter step
refrescos
relinquisht
replevying
riveting clamp
rolling window
rotty
sagittal acceleration
salt extraction
Schroeder van der Kolk's law
scrap chute
serpentinises
shih y?eh wang hsiang
softpc
Spyri
St-Gabriel-de-Gaspé
stefan-boltzmann's law
submersibles
supergroovy
tape block
text-hole
unjustly
vapo(u)r polishing
writes in