甲基腺嘌呤

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(60) / 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(58) / 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(83) / 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(66) / 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
a cutter
Aconitum barbatum
adroiter
Agulhas Ridge
alaph
aldrovandas
anopridine
application security layer
attest
attitude-sensor
automatic scram logics
baywood
beg one's pardon
blast-furnaceman
bsc(binary synchronous communication)
bumboy
cargo-pumping machinery
caroa
catskill mountainss
Chalcidoidea
channel control word
cigaretteless
classes of pollution
closed-cycle cooling
coil-over
colligend ion
compersion
computer output
consociational
cubebane
cyclone infested regions
derived normal equation
disagyse
dorothy mary crowfoot hodgkins
drabble-tails
drainage sluice
ear tunnel
effective cutoff frequency
electrically operated
enucleate
epiphysin
family Rheidae
fascia clavipectoralis
femto-becquerels
film cutoff frequency
flee to the bent
fundamental or major breach
griddly
guide wheel core ring
gunnel
half-and-half joint
husking time
INFRIIDAE
invertible transform
lateral circumflex femoral veins
lattice of nucleus
laughing soup
lay the bridle on the neck of
letterings
lightfronts
line capacitance
linear border scale
linear decision rule
location of dam
loess tableland
losslessness
Make a Pig's Ear of it
me-ness
must-operate value
oobleck
order Testacea
parasitids
platooning
porche
port-moresby
Pulozero, Ozero
remedy for foot perspiration
rubber lined hose
SAS-A
sead
see-saw repeater
sex segregation
shake-up
sign of manufacturer
single-element cask
slender cylinder
sol-gel
spug
start date/time
stefek
Strand, Mark
strek
supplier credit
tapping sample
trowman
true reticulosarcoma
unconquering
valvulae vestibuli
vivat
warning away
weakener
Ybit