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四溴化物

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(303) / 评论(0) 分类 Scientific American(一)月

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(291) / 评论(0) 分类 医务英语

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(351) / 评论(0) 分类 农业与发展

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(329) / 评论(0) 分类 VOA2003(下)-环境与健康

AGRICULTURE REPORT - Cover Crops By Mario Ritter Broadcast: Tuesday, March 23, 2004 This is Steve Ember with the VOA Special English Agriculture Report. The idea to grow a crop that improves the land

发表于:2019-01-30 / 阅读(288) / 评论(0) 分类 农业与发展

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(358) / 评论(0) 分类 万物简史
学英语单词
accounting manipulation
aconitums
adaptive decoupler
amorolfin
antimonid
as for me
audifier oscillator
Bambouk
Bartoville
bayonet scraper
bead-spring model
beetled
birthmarks
boylove
caroticotympanic canaliculi
cart wright
ceremonialism
chaotic structure
circumscribed pipe wrench
clodine
coal chutes
condensation pumps
copper sweetening process
count fleets
dependency of attenuation on frequency
detection technology
dharmananda
diabetic gangrene
endorhachis
entomions
excitory
exhaust vent line
first dollar coverage
fore dune
fresh water deposit
full scale model
gamma fluoroscopy
general connector
genus isuruss
genus tillandsias
Godden, (Margaret) Rumer
harmonic telephone ringer
hexacene
how is
imprinting process
integrator
interorogenesis
Issoudane
Jonnesco's fossae
k-tel
Koua
laurium (lavrion)
least-square reduction
linear regulation control law
Linofilm quick
main thyristor rectifier cubicle
man-hours in idleness
Margo posterior partis petrosae
Naast
natus
neilsen
norweb
outspokenness
pendular suspension
phenylcarbinols
phenylhydrazine
photolyases
physeteryl alcohol
precision planter
protolithionite
push present
Q-server
replacement dike
revenue and expenditure control
reversed field focusing
right a wrong
root diameter of worm
ruedigers
Saxifraga angustata
second-hand brick
segment roller
serpentine pipe
sharpnesses
shell membranes
sherbourne
sinopodisma formosana
skough
suhm
tanning tumbler
theory of archipelago
three-fourths
throw tongue
true dwarves
unscottified
US Fish and Wildlife Service
user class
utterance spectrogram
valerianas
Volterra process
Wedaung
well-curled
Whose book is this