二甲硒;甲硒醚

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(65) / 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(70) / 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(95) / 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(68) / 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(60) / 评论(0) 分类 经济学人科技系列
学英语单词
active method
adjusting camera chain
adriazola
anchistrocheles shinyangriensis
apm
appeal bond
astemizol
average range
beetz
binding screw
Boehmeria hwaliensis
bungo-fuji (yufu-dake)
calcium-larsenite
Carlisle Cr.
carry-over rate of solids
cartiliginous
cascade filtering
chass
Cinemascope perforation
crusher chute
cyclically
drobely
eightfold way
equalitarian
equilibrium level of national income
erectable
ethyl 2-methacrylate
facial gestures
famewhores
filioparental
flowdiagram
fundoscopy
generalized ridge regression estimator
grain grading
gyro-horizon
hallado
hardly surprising
have a nodding acquaintance with
hepatic pyrite
hydroperion
hydroxy-isobutyryl
in anaphase
in-house funds
international money broker
kerratoconus
lanzi
locomotive gradient
Loufa
lubricating oil dirty tank
magmatite
maleducative
maritime peril
metallo-protease
methylenediphosphonates
mine-sweepers
monaural
morphological character
multiskilled
Murrell
NEOBATRACHIA
non-dualisms
out-fielder
overlabouring
phaiozems
piehler
Piper laetispicum
polyether ketone ketone (PEKK)
poor stick
povtairer
pulse positon modulator
rectangular column
refinery loading rack
repentance
rhamphastids
Rhodiola ovatisepala
rib steel
root-crushing machine
rug-cutter
Safavi
sand chair
scoriaceous bomb
setup string
shift left
silta
simple mixed-strategy
snake venoms
Stokes phenomenon
Stop loss limit
stricker
submerged cultivation
subsidiary aspect
thermostat control
three-spot
tidal epock
transmission request
troubly
tsunami barrier
Ulster Irish
uninvitingness
unsaturation
vBNS
White Plains