[化] 苯酚
[医] 酚, 石炭酸

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(166) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(140) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(122) / 评论(0) 分类 初学者听力文摘精选

(MA) Scientists are always on the lookout for alternative sources of energy. Today we're going to discuss one that's so plentiful they say it could supply more energy than all the coal and oil in the world. It's found in something called gas hydrate

发表于:2018-12-30 / 阅读(160) / 评论(0) 分类 托福听力短文

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(112) / 评论(0) 分类 英语听力文摘 English Digest

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(160) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(162) / 评论(0) 分类 Scientific American(十一)月

Japan said Tuesday it had successfully extracted methane hydrate, known as fire ice, from its seabed, possibly unlocking many years' worth of gas for the resource-starved country. In what they are claiming as a world first, a consortium is drilling f

发表于:2019-01-08 / 阅读(123) / 评论(0) 分类 英语阅读理解

Ben Carter Powdered material called dry water, could provide a new way to store carbon dioxide in an effort to fight global warming. Dry water looks a lot like fine white sand, which isn't surprising since what makes it dry is that each tiny water dr

发表于:2019-01-14 / 阅读(159) / 评论(0) 分类 VOA标准英语2010年(九)月

It's very hard to tell. We've just hit the water. It's very hard to tell what altitude we're at. We've crashed the airplane at 930 feet. It seems clear that flying into that methane caused enough confusion in the instruments and with Thomas and he en

发表于:2019-01-22 / 阅读(180) / 评论(0) 分类 自然百科2010年

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(298) / 评论(0) 分类 英语新闻

本期内容: How much you sweat doesn't necessarily correlate with the intensity of your workout. It is due to a number of factors, including gender (men tend to sweat more than women) and age (younger people sweat more than older people) as well

发表于:2019-02-20 / 阅读(127) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
-spirone
Abor-Miri
according to plan
aerial tuning unit
ambigenal
amitosis
arteria perinealiss
autocollimation theodolite
behave like a hog
blanchers
Blephilia hirsuta
boundary-layer control
Brettville
buzuluk r.
CAD (computer aided design)
chemical softener
Chisholm Trail
cismadinone
Civatte's disease
clearance limitation
coil extension
compactly generated group
concavoconvex lens
cramble
csag
culebra ra.
cyclotrigallanes
dimethoate
Dineparil
directed affect the ultimate frequency of arace
dulceness
enneagynous
equitable charge
felworts
fidh
fighter bomber
fish hold
flanged piping
fractionalizing
frigor
fuel tank evacuating pump
gabbro-aplite
gear lift
gear roll finishing machine
genome-sequencing
Georgia Southern
glass base laminated material
HERDF
high rolling
hold something in reverence
homogenetic impulse
horizontal sampling factor
ICBU
ILOC
inclined transfer tube
intermaxillary force
intermittent nystagmus
International Accounting Standard
international corn bushel
Ixodida
Izumiyama
Kaliautunite
lampe
laser machining
lead soap
Lett
levenberg-marquardt methods
loose blade
medium-frequency rotary converter
mobiliary art
molding cycle
Monardella
Musaba
nandubay
nonstereogenic
null drift
Oder-Neisse Line
organic colloid in seawater
over-range protection
pachmucosa
permanent character
plumber's knife
pocket can
podoid
primaveral
radio resonance method
rami basalis posterior
root canal filling
rudimentary teat
selvage, selvedge
snoughs
spare-rib
specificatio
spiritshadow
text-matchings
textile lubrication
three-stater
triple screw
twerkin'
verbal struggle
Vetto
ZOH