重水

Well, that's limelight. What exactly was it? Well it was the burning of calcium oxide in a very intense flame. And when did the job of a limelighter begin? Oh, famously, the first recorded instance in

发表于:2018-12-07 / 阅读(68) / 评论(0) 分类 圣诞特辑

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(109) / 评论(0) 分类 VOA2003(上)-科技导航

Item eight. Vocabulary. fossil, molecule, hydrogen, carbon, sulfur. Petroleum has been important since ancient times. In Latin, the name means rock oil. Petroleum is a fossil fuel. The liquid comes from the remains of plants and animals that died mil

发表于:2018-12-27 / 阅读(61) / 评论(0) 分类 step by step 3000 第一册

Matthew / England speaker I hope not. I hope if they are driving cars they are run on hydrogen or perhaps something else, electricity perhaps, but I really hope we don't use gasoline anymore. Maiko / Japan speaker I do think in 100 years people will

发表于:2018-12-28 / 阅读(73) / 评论(0) 分类 一起闲话英语-English Chitchat

图片1 aerial n.天线 例句:The picture is much clearer with the new aerial. 装上新天线后画面清晰多了。 nitrogen n.氮 例句:Air consists chiefly of nitrogen. 空气主要由氮气组成。 oxygen n.氧 例句:Trees relea

发表于:2018-12-30 / 阅读(57) / 评论(0) 分类 漫画搞定六级词汇(文本+音频)

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-02 / 阅读(93) / 评论(0) 分类 60秒科学

Hyaluronic acid - the largest glycosaminoglycan known, it plays an important role of restricting the flow of water in tissues, particularly in synovial fluid where it acts as a lubricant.. Hydrogen bo

发表于:2019-01-03 / 阅读(50) / 评论(0) 分类 医务英语

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(94) / 评论(0) 分类 Scientific American(八)月

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's Sixty-Second Science. I'm Christopher Intagliata. Got the minute? A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? The Apollo moon missions ended almost 40 years ago. But for lunar scientists, they're gifts that keep on giving. Researchers studying rocks brought back by ast

发表于:2019-01-08 / 阅读(84) / 评论(0) 分类 Scientific American(一)月

Grab my hand take one step Come with me no regrets 'Coz we'll fly higher than what you can imagine When your heart is mine, anything can happen You're my baby I know you hear this song No need to worry about us You ain't doing nothing wrong Coz latel

发表于:2019-01-14 / 阅读(79) / 评论(0) 分类 节奏布鲁斯

凭借在iTunes和MySpace的成功,来自美国加州的流行女歌手科尔比凯拉特(Colbie Caillat)的处女专辑《Coco》一经发行便得到了很多歌迷的关注。在美国上市第一周,这张《Coco》共售出5万1千张,在本周的Billboard 200专辑榜中跻身前五名. 在没有与唱片公司签订合约之前

发表于:2019-01-23 / 阅读(192) / 评论(0) 分类 音乐咖啡厅

BERLIN, April 25 (Xinhua) -- A study recently published in the journal Nature Chemical Biology opens up new avenues in biohydrogen research, the Technical University of Berlin (TU Berlin) said on Friday. Scientists at the TU Berlin succeeded in expla

发表于:2019-01-26 / 阅读(56) / 评论(0) 分类 英语新闻

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

发表于:2019-01-30 / 阅读(146) / 评论(0) 分类 农业与发展

The U.S. space agency is moving ahead with preparations for Thursday's scheduled launch of the space shuttle(航天飞机) Discovery on its mission to the International Space Station. NASA said it was loading liquid oxygen and liquid hydrogen into th

发表于:2019-02-02 / 阅读(84) / 评论(0) 分类 英语新闻

Colbie Caillat-Oxygen I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边

发表于:2019-02-02 / 阅读(64) / 评论(0) 分类 好听的英文歌曲

German Car Manufacturer Audi Creates Fuel From Air And Water 奥迪用空气和水合成新燃料 Creating an alternative green or carbon neutral fuel to replace gasoline has been the holy grail for scientists for many years. However, while there has

发表于:2019-02-05 / 阅读(57) / 评论(0) 分类 阅读空间

巧妙拒绝别人 Establish boundaries and honor them for all to see 设定让所有人都知晓的界限,并坚决执行 Let your constituents know your priorities and limits. Don't continually break your own rules about when you are available or

发表于:2019-02-16 / 阅读(57) / 评论(0) 分类 英语听力广播—Listening

Hydrogen and Industries Hydrogen,the lightest and simplest of the elements, has several properties that make it valuable for many industries. It releases more heat per unit of weight than any other fuel.In rocket engines, tons of hydrogen and oxygen

发表于:2019-02-17 / 阅读(50) / 评论(0) 分类 双语有声阅读
学英语单词
accademias
againstness
aircraft wing
Altlay
angle of site
au revoirs
auto-production line for electronic facsimile
balanced division
beclown
bitterbrushes
burnsite
categorially
cavemates
centrifugal-film evaporator
Churchill, Lord Randolph Henry Spencer
cinnacassiol
coaxial horn antenna
concurrent pulse
Cornulaca alaschanica
crystalloid bodies
cybertravellers
cylinder undercasing
deterged
distasture
economic problem
ejaculatory orifice
elaenial
emptying auger
energy-exchange time
entrails
expected mean
felicity
fixing fillet
flavonoid chemistry
Gerbera curvisquama
gradient index lens
hetero-refraction
high resolution NMR spectrometer
hop-field
immunoradioassay(IRA)
Jean-Nicolas
jibboom
kayhew
Kiavah
lactant
lampante
leven
line width characteristic
lirinidine
locked chain
low fire
low-range pressure gauge
lowping ill
macho dancer
malonylation
man ape
marine frequency band
masked residue
memory keys
merchant services
mold drying
mugham
multiwire triatic antenna
Nitzschieae
object link and embedding
omphalotaxis
passenger cabin
perforated baffle plate
perimyelography
phooeys
pressure-filter-bulb method
prilling tower with reinforced plastic lining
process address space
proteoform
push-pull hypothesis
quadrivials
requarantining
salivary chromosome
Scardinius erythrophthalmus
semantics-free
semivertagus zebrus
serranos
silicon sensor
St-Gédéon
St.-Bruno's-lily
stage hoist
stenothyra edogawensis tanabensis
stereogenicities
sutura intermaxillaris
tangoing
taudry
terrestrial system
thalassery (tellicherry)
triazaborane
valkenburgh
Van Slyke-Cullen's test
Wendlandia luzoniensis
whistle buoy
willow-trees
workpack
wrong in the head