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(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(90) / 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(59) / 评论(0) 分类 经济学人科技系列
学英语单词
acidic property
affiliated association
All is not gold that glitters.
Aminocotin
analysis of industrial supply structure
ascending neuropathy
ATP-sensitivity
authoritarian
Avon Gorge
ball-and-race type pulverizer mill
blunderer
burglarer
cancer of larynx
commerical psychology
common battery switchboard
componential
connection point magager(cpmgr)
crainte
curatrix
Curcumorpha longiflora
current amplification degree
curve velocity
diffusive dialysis
dipyramidal
direct cycle access storage device (dasd)
direction indicator (di)
domazoline
double-welled cylinder section
economic net present value ratio
Eczecidin
elongation areas
embezzle public funds
emergency ac power system
estimated time of finishing discharging
fonkin
gearwheel
gmm
Gram's stain
half-uncials
high-energy ion analyzer
impact crusher
industrial water conditioning
intermediated chemistry
junction transistors
kingstowne
klaveren
lemon tart
Lindenwold
lord it over somebody
major face
meet a draft
middle-eastern
mixed type occlusion
Morpeth
Nannotetraster
non recoverable
noncorticosteroidal
on-deck
oscillating oil cylinder
parabolic shape
parile
pericardial concretion
Pinus formosana
planetary satellite
polyenylphosphatidylcholine
Profasl
profection
pure yeast culture
QSM
reexamination of new drugs
repeater communication satellite
rommanies
safeworded
satin double faces
semiapex angle
semiliteracy
sensualised
servo resolver
skatosin
smart-grid
soldering flame
sphere of knowledge
submicroscopic cracking
subperiosteal whitlow
sulci interlobares
super-orthicon
surcase
swinging die press
syncephalastrum racemosum
timer-shaft cam
tricot cross
type AB
ungrasp
unit circle
USPSRS
validity test
vehicle operation efficiency
water-flows
whipsaw
Wormeldange
yellow caution zone
Zenata