四苯基丁二烯

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(155) / 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(128) / 评论(0) 分类 Scientific American(三)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(166) / 评论(0) 分类 Scientific American(一)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(105) / 评论(0) 分类 初学者听力文摘精选

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(101) / 评论(0) 分类 英语听力文摘 English Digest

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(147) / 评论(0) 分类 医务英语

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(148) / 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(150) / 评论(0) 分类 Scientific American(十一)月

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(288) / 评论(0) 分类 英语新闻

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(175) / 评论(0) 分类 万物简史
学英语单词
abiotic component
air-cushion system
angiomyeloma
asthane
athematically
Atherstone
automatic band saw sharpener
bathydraconid
be in apple-pie order
Beer,August
bodychecking
Catabrosa capusii
chemically modified paper
chewing tobacco
chylosa diarrhea
colamine
compact disk read only collection
computer camera
copper-stripping reaction
correction of a final proof
cotton mills
counterbuff
Dactylogyroidea
digital cartridge
dormant stage
duesenberry
eastwardly
endodontology
engineering vehicle
enshrouding
entero-vioform
evasion of legal sanction
evie
exit quality
flix
fulminuric
general table
genus acanthophiss
globoid leukodystrophy
gray rape
grigorian
half module
hemagglutin ationinhibition
horse-drawn ridging plow
host condition
i-nomen
impersonal organizational structure
Import Cargo Insurance
inode
iodizate
job sample
leased material
legal suits
Lespedeza cuneata
life hereditor
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luminescent glass
lystra
magnesia alumina brick
magnetic interrupter
Mai, Pulau
merited
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operating record of machine
ornitholites
outspell
overhead-valve
palatal surface
parasitoid
pentodont
photoelectronic amplification
phragmidium okianum hara
Pitsford
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religious person
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sentire
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tsampouna
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unknome
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Zharcha