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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(147) / 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(183) / 评论(0) 分类 知性英语

D Dahurian Rhododendron Leaf P.E 满山红提取物 Daidzein 大豆甙元 Daidzin 大豆甙 Dandelion P.E 蒲公英提取物 Daphnetin 瑞香素 Daphnin 瑞香甙 Daucosterol 胡萝卜甙 Dauricine 蝙蝠

发表于:2019-01-03 / 阅读(63) / 评论(0) 分类 医务英语

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(53) / 评论(0) 分类 医务英语

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(112) / 评论(0) 分类 VOA常速英语2007年(十一月)

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(67) / 评论(0) 分类 科技之光
学英语单词
abnormal function
algorithmic programs
Anemone coelestina
antidrip device
as distinct from
as sure as one stands here
back-up control data set
barrel hoist
bloomeries
Bol'shaya Kazinka
brushless machine
Butylhydroxyanisole
chimney cooler
coke filter
copper(ii) hydrogen phosphite
Cuifengshan Group
curraghinalts
cyclical responsiveness
design to cost
discontinuous servomechanism
dish garden
dissyllabism
divisional type double action oil hydraulic press
double-voltage motor
effective thermal conductivity
Eggobesin
even-numbered observations
external loans act
external rhythm
flame propagation test
foreign sales branch
form holder
glare down
hat-tricks
have strong nerves
head tower
helicis minor
HIATELLIDAE
hitchcox
hydro-acupuncture
immediate plan
isothiazoles
kiddy car
kinematography
latch opener
lubricating oil pump body
lutra lutra chinensis
male hog
mantle cells
maracasite
Massai disease
mericlinal chimera
mirror scale
mixture model
musgraves
Mutoto
my fair lady
nanoradian
Nothoperanema
one hundred and eight
opening price
operator table
overall attenuation level
paleophytic era
peaness
praen
primigravidas
prospeed
Puccinellia shuanghuensis
quantum tunnelling
rejectitious
ring tosses
risk measurement
rockhounding
root diameter of wormwheel
RPG evaluation
run-off pit
semiautomatic controlling machine
singleton variable
snow owl
sodium tallowate soap
soil stabilization
some-some-some
stippen
suckiness
sweep-through
swins
swishers
symbology identifier
tactical efficiency
ternary cmos logic
Thiotiron
totally symmetric loop
trachelomonas oblonga
Trichloris
tubular ovipositor
tune-ups
ungobbled
vector oscilloscope
ventilation terminal
waveguide channel
xylocopa bomboides