氢离子跨膜梯度

interpret escort fill magician magistrate magnet levy retirement proximity maid reconciliation guitar perfume migrant gradient storage malice mammal maneuver manifest deafen foreign abstract maple

发表于:2018-12-01 / 阅读(271) / 评论(0) 分类 用Mp3背六级单词

Rachel Lee: The housing market keeps losing steam. Sales of previously owned homes fell 5. 7% last month according to the National Association of Realtors. If you're looking for a house , the group's

发表于:2018-12-05 / 阅读(192) / 评论(0) 分类 商业报道2006年

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条,都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(239) / 评论(0) 分类 太阳科普

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(228) / 评论(0) 分类 VOA2003(上)-科技导航

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(191) / 评论(0) 分类 英语演讲

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(236) / 评论(0) 分类 国家地理2008年

Ecological balance - astable balance in the numbers of each species in an ecosystem. In the ecosystem of the mouth this balance is brought about by competition and cooperation between the different or

发表于:2019-01-03 / 阅读(214) / 评论(0) 分类 医务英语

Covalent bond - a strong bond between atoms formed by sharing outer electrons. When an atom has 8 outer electrons it is stable. Those which naturally have 8, like neon and argon gasses are quite unrea

发表于:2019-01-03 / 阅读(231) / 评论(0) 分类 医务英语

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. This week, we will tell about an American study of the brain disorder schizophrenia. We tell about cars that use hydrogen as fuel. And,

发表于:2019-01-11 / 阅读(292) / 评论(0) 分类 VOA慢速英语2008(十)月

Obama Tells Syria's Assad to Lead Transition or Leave In his Middle East policy speech, President Barack Obama said Syrian President Bashar al-Assad faces the choice of either leading a democratic transition in his country or getting out of the way.

发表于:2019-01-14 / 阅读(143) / 评论(0) 分类 VOA标准英语2011年(五月)

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(182) / 评论(0) 分类 自然百科2008年

When you think you've seen everything that could possibly be done with nail art, manicure devotees prove you wrong. Step forward the new trend blowing up on Instagram for 'bubble' nails, where acrylic is piled up on top of the nail and thinned out to

发表于:2019-01-28 / 阅读(186) / 评论(0) 分类 阅读空间

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(188) / 评论(0) 分类 英语新闻

Part 2. Green Transporation Festival. Keywords. Green Transporation Festival, oil, environment, reduce, other kinds of fuels. Vocabulary. hydrogen, propane, scooter, hybrid, ethanol. A. You are going to hear a report on green transporation festival.

发表于:2019-02-03 / 阅读(217) / 评论(0) 分类 step by step 3000 第一册

SEOUL/WASHINGTONThe U.N. Security Council said Wednesday that it was working to craft new sanctions against North Korea after its latest nuclear test, while the United States and other world powers voiced skepticism about Pyongyang's claim that the u

发表于:2019-02-04 / 阅读(152) / 评论(0) 分类 英语新闻

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(232) / 评论(0) 分类 托福英语

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

发表于:2019-02-06 / 阅读(228) / 评论(0) 分类 雅思英语

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(241) / 评论(0) 分类 英语美文

9月16日是墨西哥馆日,墨西哥馆五颜六色的风筝森林吸引了不少人的眼球,你知道小小的风筝里有什么大学问吗?其实风筝也有很多种分类哦,一起来看看吧。 说到kite这个单词,这也许是我们

发表于:2019-02-18 / 阅读(250) / 评论(0) 分类 英语口语

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实,朝鲜成功的进行了

发表于:2019-02-18 / 阅读(169) / 评论(0) 分类 英语新闻
学英语单词
american engineering standards committee
appetite control
atrament
attachment of anther
band-pass-TR tube
boiler gasket
Can Tho, Tinh
capital market rate
caproic amide
carpetmakers
Castaneda, Carlos
Chloronema
civilian police
clud
cohesion mechanism
consensuss
constant angle fringes
crop requirement
customary price
DC machine for electric mining shovel
debt note
developmental phase
diamond penetrator hardness
Dicoranil
drips
employment office
entry protection
establishing-clause
family crangonidaes
fried prawn
Goyrand
granulated carbide
graphics segment
gross domestic expenditure
guarente
gyro-meter type tachometer
harringtonine
hemigymnus fasciatus
hill country
inasfar
InChI
initial condensation
inside wing
kill a well
knee tool
levator palpebrae superioris
LOIHT
Lonicera tubuliflora
maintown
majorant
Malgham
many purpose
methylcellulose
micro-gap model
mis-hook
mopidamol
necessary wants
nets
nettastoma parviceps
OB (oil burner)
on-ramps
P1 phage artificial chromosome
pallet for handling goods
phone-company
pin hole corrosion
plastic art
poisonwoods
primary sensorium
Programming Language/1
proturan
pucciniastrum gentianae
radiation report
radiorestorative chemical
redistribution of national income
rehumanizing
residual problem
rodeo
RVAH
saint eustatiuss
sericious
sidles up
sleep terror disorder
solution composition
space exploration satellite
special arrangements
speculature transaction
splaying arch
statement of the accused
subject-object role reversal
supporting lug
Séoune
threshold limit value (tlv)
throw-over wheel
total input power
tso command language
vaal dam
W/CM2
wheel station
WHF
winkling out
with kid gloves
withered tongue