[化] 反二十碳烯酸; 反式二十碳烯酸
[医] 反鳕油酸

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(146) / 评论(0) 分类 (科普英语)Earth and Sky

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(180) / 评论(0) 分类 知性英语

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths By Nancy Steinbach This is the VOA Special English Health Report. A new study in Sweden has confirmed another important health effect

发表于:2019-01-04 / 阅读(56) / 评论(0) 分类 健康与环境

Folic Acid Supplements Shown To Reduce Risk Of Autism Green, leafy vegetables, fruits and nuts naturally contain folate, a B vitamin that helps the body make healthy new cells. Most pre-natal vitamins include folic acid because it protects against de

发表于:2019-01-14 / 阅读(62) / 评论(0) 分类 VOA标准英语2013年(四月)

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(110) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

发表于:2019-01-16 / 阅读(101) / 评论(0) 分类 2007年VOA标准英语(六月)
学英语单词
2-sec-butylamino-4-ethylamino-6-methoxy-S-triazine
a rap
airborne infrared astronomy telescope
altius
Artur
attitude error
balloon seat
bare one's teeth
Bifoun
calea
cameroon francs
capture-produced isotope
chrysandiol
CM-Sephadex-C25
contingent delivery of reinforcer
cooperative organization
cotton wilt
cylinder output balance monitoring
discontinuous eutectic
disrelated
donor-driven
eardrum pressure
economic current
ephedra
farra
flaccifies
fore-elder
fore-way
hav-
hell-bent
Hemsleya wenshanensis
hollow projectile cartridge
hornfels
hummer screen
Husserlian
identity period translation
infratemporal approach
Instron apparatus
inter-group communication
intermittent paralysis
jasinowski
kaverin
lateral resistance
leading angle error
let him who is without sin cast the first stone
level demand signal
manual ranging
marginal investment
meter-taxi
mirada
mixed aniline point
multicountry
multilateral talk
nontalented
nordefrin hydrochloride
omnivorous leaf tier
ore car
Osong
overlocking
perennial plant
petroleum sulfonates
phyleophebic
porcelain telephone insulator
porous-foil electrolytic capacitor
prosoplus bankii
proxxest
pseudoinope fusca
pyrosol
quiescent chamber
radio-activities
rammers
range and dead area
ratioturn
read-only access mode
rf control system
rhyacophila formosana
salt flower
second hands
sendge
silver/silver chloride electrode
simple coordination
somehow w
speed error table
Splügenpass (Spluga, P.dello)
spon
steel wire type torquemeter
straight side long pitch steel chain
succinoxidases
synchronogamy
teleologist
tension curve
to go from bad to worse
transportation load
travelling cut-off saw
triple mode catalytic converter
turn off the power
tyrannous
valerianic
visual schemata
wested
Yangtze alligator
zinc dithionite