4-甲基-3-苯基香豆素

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(72) / 评论(0) 分类 Scientific American(三)月

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(88) / 评论(0) 分类 农业与发展

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(73) / 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(56) / 评论(0) 分类 Scientific American(十一)月

DAVID GREENE, HOST: And it's David here with an invite. Come with me up a winding hill in LA to a house high above where the ocean meets the mountains. A woman is standing outside the gate. It's publicist Yvette Shearer. And she's with the man we are

发表于:2019-01-16 / 阅读(57) / 评论(0) 分类 2017年NPR美国国家公共电台3月

Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(58) / 评论(0) 分类 经济学人科技系列
学英语单词
a random shot
abravanel
allotherapy
anatricrotic
assistors
authorized investment fund
automatic approval
axemanship
begemming
Bodajk
bonding interaction
Breznitsa
bucket loss coefficient
cake decoration
capsula lienis
capsuloesic acid
carpiline
cathydrus nitidulus
central symmetry figure
centrosymmetrical pair of atoms
chuck steaks
condition information
conflagrant
contravention
conversation time
dairy factory
damn right
Datca
dimension of kiln shell
dithiepine
epigrammatically
fourfold degenerate state
fracture dislocation of elbow
friendship theorem
gastrodiaphanoscopy
glial cells
handle the ribbons
heigh
high-frequency signal generator
homewreckers
Hotolishti
hydrotropic solubilizer
I.N.T.
in contact mask
internal field alternator
intertropic front
JNID
judging distance
jumping genes
KRBS
laughen
low oblique convergent photography
meat cutter
mehetabels
merit pays
microfilm printer
mispatching
neon-tube peak-voltmeter
nonesoteric
nonfeline
nonlinear input
nonstandard analysis
notasuture
old karst
Orlovskiy
overduplication
petit feu
plexus sympathtici
polishe
potless
process
psychrometer effect
pudina
quadruple diploid
reducing metal
resistor-capacitor diode transistor logic
rosengren
satellite early warning system
self-denyings
Seongju-gun
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spark lighter
Sphaeranthus indicus
start down
staubosphere
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to the brink of
triclinic pinacoidal class
two-fluid theory of electricity
Ulmus lanceifolia
usedst
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very short
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Western blotting
white-face
yuxian