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This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(64) / 评论(0) 分类 Scientific American(六)月

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(66) / 评论(0) 分类 Scientific American(三)月

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(60) / 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(88) / 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(67) / 评论(0) 分类 VOA2003(下)-环境与健康

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
-parous
ac exciter
acer palmatum pubescens
acrocentric(white 1945)
AEAE
aisenberg
amphithallic
autoscreen film
ball-head
Banagi
Bobbingworth
boiler works
bon appetit
Breien
calcium reversal lines
chevrony
ciliated protozoan
cold shrink disassembly
concave pan
continuous flight power auger
continuous terrace
control pillars
copper-wire gasket
copying
cryptobranchus alleganienses
cylinder locks
delaying circuit
demental
disulfanil amide
duemling
El Convento
etiopathogenic
fari
finite subcomplex
fluid low
freezing tray
front clip attachment
garantee
gauss (normal) epoch
Heath-Robinsonesque
Hibiscus austroyunnanensis
houlding
hypogaster
in full uniform
johannes brahmss
Judahite
karabila
lonicera coerule l.
lorado tafts
microprogram emulation
mirrorimage
moderator lattice
Mondayizing
mule-frame copping motion
negative dissipation instability
nondegenerate feasible solution
noninstitutionalized
nonmonotonic
office of origin
on-off mechanism
one above the other layout
othar
petrosulpho
play with one eye on the gallery
political conservatives
poly(U)sepharose
probabilistic potential theory
pyramid pianoforte
quinovopyranose
rack type wagon
reedgrass
Repugnantcans
rhyparographic
rigid facing
ring shear apparatus
running-boards
Sanislǎu
saturated surface
self-pollinated plant
setted
silius
solar evaporation
solid cone
spare change
special procedures
stalactical
Staurosporae
stromateids
subendothelia
sugeronin
sustainable economic growth
thermooptometry
toluene index
tool lorry
tumidity
two-magnet extraction system
unidirectional ring laser
vacuum ballistics
Van Norman
vitelline network
VLI
what's her face