氯乙苯

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(356) / 评论(0) 分类 2017年VOA慢速英语(六)月

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(65) / 评论(0) 分类 Scientific American(八)月

BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(115) / 评论(0) 分类 英语新闻

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(65) / 评论(0) 分类 阅读空间

Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele

发表于:2019-02-08 / 阅读(86) / 评论(0) 分类 VOA标准英语2010年(一月)

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(47) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
-ordered
A word in your ear
adenosine 3',5'-cyclic phosphate
agnuside
algorithmic convergence
APERTASE
aplilalia
arrestation
asexual spore mitospore
astroballistics
automatic traction
Big Three
bit timer
blechnum orientale l.
Bordj Messouda
bumblebee model
case restore
cell stack assemblies
chamaea fasciatas
cheap oil
clamp-off
clocks and watches store
coastal debris
collonado
dating from
desmoplasia
desolater
donepezil
dottor
dragoslav
Elizabeth Haldane
empty-bellied
extension of time for filing
Eyrans
fabrication process
family thymelaeaceaes
fission bomb
Frikadelle
gallen-kallela
Gerson-Herrmannsdorfer diet
graduate-level
green book
Gwadi
Hanzi information processing
hydraulic head
in dread of
incorporeal hereditaments
injective object
integral support lug
iron block
lalibert
limit of unsurveyed area
load dividing valve
locally convextopology
management tactic
marine traffic
mcnichol
megalocystidium luridum
Microsisymbrium minutiflorum
Nanticokes
ninties
non-reflecting bead
oil cam
omentosplenopexy
optical glass probe
oscitates
permanganate number index
petroleum processing wastes
phototurbidometr
pit bull
polyformalolehyole fiber
positive-rule estimator
prime amplifier
pues
pumping up
random error-correcting convolutional code
record level
Reed-Solomon code
resistance thermometer clement
rosy-cheeked
salpingioma
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separator column
silicates
single effect evaporation
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skeleton deck
spatial array processing
sqgs
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summary of taxable factory wages
thousandth
transverse framed ship
uridylating
vertical-variability map
water content of inhibiting plant growth
wennel
wire gauze
wolf fish
yosemite fallss