磷酸镨(III)

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(150) / 评论(0) 分类 医务英语

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(171) / 评论(0) 分类 Scientific American(四)月

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发表于:2019-01-10 / 阅读(392) / 评论(0) 分类 外研社新标准高中英语选修9

This is the VOA Special English Health Report. A migraine headache can cause disabling pain. People may not feel back to normal for hours or even days. Migraine headaches are most common among young adults and middle-aged people. In the United State

发表于:2019-01-11 / 阅读(113) / 评论(0) 分类 VOA慢速英语2009年(三)月

U.S. President Barack Obama says he seeks unity at the G-20 economic summit in London, and a new arms deal with Russia. It was a busy day of diplomacy for Mr. Obama as he launched his first overseas trip as president. Britain's Prime Minister Gordon

发表于:2019-01-13 / 阅读(129) / 评论(0) 分类 VOA标准英语2009年(四月)

By Sonja Pace Heiligendamm 05 June 2007 President Bush is in the German Baltic Sea resort of Heiligendamm for the three-day summit of the G-8 group of the world's leading industrial nations. The summit opens Wednesday amid protests and policy differe

发表于:2019-01-16 / 阅读(171) / 评论(0) 分类 2007年VOA标准英语(六月)

By Anjana Pasricha New Delhi 09 March 2006 In India, the holy Hindu city of Varanasi has bounced back to normal two days after it was hit by deadly bomb blasts. An unknown Muslim militant group in Kas

发表于:2019-01-26 / 阅读(273) / 评论(0) 分类 2006年VOA标准英语(三月)

EDUCATION REPORT - Learning Disabilities, Part 4: Dyspraxia By Nancy Steinbach Broadcast: Thursday, February 26, 2004 This is Steve Ember with the VOA Special English Education Report. People who have

发表于:2019-01-30 / 阅读(184) / 评论(0) 分类 教育与新闻

This is Search Engine Optimization Explained by Common Craft. 本期介绍搜索引擎优化。 Imagine for a minute that youre a librarian, but not a normal one. Youre a librarian for every book in the world. 假设你是名超级图书管理员,管

发表于:2019-02-05 / 阅读(123) / 评论(0) 分类 英语万花筒

By David Gollust Washington 07 June 2007 Leading human rights groups Thursday called on the U.S. government to account for terrorism suspects they believe were detained by U.S. authorities abroad but whose whereabouts are now unknown. The Bush admini

发表于:2019-02-07 / 阅读(146) / 评论(0) 分类 2007年VOA标准英语(六月)
学英语单词
abruquinone
acatastasia
al furuthi
ananabasia
average shading
Bacoli
be at grips with
bicolons
bismuth peroxide
Bochdalek's ganglion
brahminisms
broken apart
caimito
canal paresis
card for record only
carrier phage
carvacrotinic acid
chaetoceros mitra
combustion fired MHD generator
contactless type automatic voltage regulator
d.e.a
dark lane
deflection method of measurement
delibrate
Dicerostylis
dilection
dimethylsulfanilamidoisoxazole
draconarius labiatus
dress ... in
face control
far-field seismic signal
flocked carpets
focaliser
fog drip(let)
foreign-owned
fully automatic turret screw machine
heartburning
hiroaki
horse cavalries
Hummelfeld
I. B. R. D.
iso-amylethylbarbituric acid
justifiable
keep vigil
laevo-
lateral leaching
lipoma of scrotum
litidionite
lo dose (of toxin)
log landing
lump sugar
Magheragall
manned satellite
miserable
Monument Valley
mooring facilities
N-DODECYLRESORCINOL
nonreclining
operator process chart
pachystomias microdon
partial additivity value function
pay duty
Payr's method
pisolitic structure
pitching period
pocket protectors
polyphase motor
pressure regulating roller leveler
propellant-loading operation
psophiidaes
psycho-analyst
Ptychoparia
push bicycle
Putranjiva
rack-out
ramp type
refusnik
Rifacyclotizone
right horizontal stabilizer
rock-crystals
satellite subsystem design
scouring cloth
stria membran? tympani anterior
surface of package
Swan Hill
table salt
tape curvature
terra cognita
tough strings
tracheomalacia
Tret'yakovskiy Rayon
turbine genared propulsion unit
turd burglers
Typhlopidae
ujongs
up to the last notch
use - by date
Van Wyck Brooks
vine raek
wearihood
weipe
yanshanite (pt-vysotskite)