[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(162) / 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(136) / 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(116) / 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(154) / 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(108) / 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(156) / 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(160) / 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(120) / 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(153) / 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(177) / 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(297) / 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(120) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
acoustic wave equation
alarm oil pressure
annual reproductive cycle
Archean Eonothem
Arrats
bandwagon fallacy
becurled
biological safety cabinet
came after
coalescence coefficient
convolvulus pseudocantabricus
corbel out
cyberpower
cycle irregularity
dansylamiono acid
disc shredder
dynamics of explosion
egg-globulin
enteric tuberculosis
filiale
fore and aft inclinometer
frequency discrimination
fresnal region
geek chics
girder web
Hallsworth
have a lot on
hepatarian
hockey clinics
incidental malaria
inspiraled
International Radio Service of Call Signs
jig-a-jig
Jose Ortega y Gasset
levinasian
limbectomy
lymph circuIation
mercury column pressure
mergin
method of critical levels
microprogrammable character generator
Milstein
movable rocket engine
mullburo
multimedia systems
multiple cell floatation machine
multiple equilibria
Nazyvayevsk
non-student
optostimulation
oxygen-dependent
paffenbarger
parliament (cake)
partial reflux
pedicleflap
perfemane (c.i.p.w.)
periesophageal space
photo-induced
picture area
pipe stem feces
piringer-kuchinka(syndrome)
point-by-point computation
primary extraxylary fibre
principal inertia axis
pylomete
reactor dilution
religious service
rotary potato sorter
safety-deposit box
sampling and analyzing unit
scholley
seave
semi-automatise
semi-cylindrical tile
simmington
singkwa
singleslope
smoking rooms
smoodgers
solar corpuscle
solo flight time
Sorihuela de Guadalimar
subindividual
superelevations
sympagurus burkenroadi
taier
take a load off one's feet
tertiary calcium phosphate
Tetralute
the course
to list
track maintenance tools
two-level nonreturn system
tympanic glands
updating course
vagus (nerve)
venae hypogastrica
vesiblilx
water chestnut starch
wutung quartzite
Yevpatoriys'kyy, Mys
zirconium hydroxide