四氧化铬

[00:09.95]Six weeks ago, the movie Erin Brockovich opened the United States. [00:16.95]So far, it has earned at least 100,000,000 dollars. [00:22.47]It tells a true story about a young woman who helped people in a California town gain money from an e

发表于:2018-12-03 / 阅读(178) / 评论(0) 分类 标准美语发音的13个秘诀 CD4

Could an element commonly found in Americans` tap water caused cancer? A nonprofit environmental group is sounding the alarm about something called chromium-6. The U.S. government says high levels of it in the air can be carcinogenic, meaning they ca

发表于:2018-12-20 / 阅读(142) / 评论(0) 分类 CNN美国有线新闻2017年2月

Help! There's someone hurt! - What are you hearing, Sullivan? - According to first responders it was a bomb. - How many? - Four of yours and five passersby. - Have anyone claimed responsibility? - We found this. - Do you think she's dead? - We can't

发表于:2018-12-28 / 阅读(138) / 评论(0) 分类 英文电影预告片填空

AS IT IS 2013-05-23 Pollution Forces Residents from California Town Hello. Im Jim Tedder in Washington. Welcome to a special edition of As It Is. Seventeen years ago, an American energy company paid hundreds of millions of dollars to settle legal cla

发表于:2019-01-12 / 阅读(147) / 评论(0) 分类 2013年VOA慢速英语(六)月

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(201) / 评论(0) 分类 PBS访谈环境系列

GWEN IFILL: Now NewsHour science correspondent Miles O'Brien begins a two-part look at America's drinking water, and the regulatory system that is supposed to guarantee its safety. His report is the result of a partnership with the Center for Public

发表于:2019-01-27 / 阅读(141) / 评论(0) 分类 PBS访谈环境系列

Why Stainless Steel Does Not Rust But Other Metals Do? 不锈钢(Stainless Steel)指耐空气、蒸汽、水等弱腐蚀介质和酸、碱、盐等化学浸蚀性介质腐蚀的钢,又称不锈耐酸钢。实际应用中,常将耐弱腐蚀介质

发表于:2019-02-24 / 阅读(195) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
.mng
abyssopelagic division
activating agent
anaphoras
antiproteases
athyroidism
atraw bag
baltic ice warranty
Bazna
BBD (bucket-brigade device)
beryllium metal
biogeochemical
blood-clot
broken into two pieces
bullying
cam shaft drive
case seal missing
celothel
checkar berry oil
Chemozine
Chianciano Terme
Christian Brethren
chromonium salts diaryi-
complexionally
conservable
cornua ustum
crane travelling speed limiter
crosscoms
Cyrtodactylus
drainage thread
emission flocculi
exabyte
face on
forefaultry
Francoisite-(Ns)
geometric fuel delivery beginning
give overall consideration
guddlers
gyro error angle
hepacarin
hunting-gathering
Ictidosauria
in the proportion of
Islamicness
jendayi
jetting machine
l/c expiration date
lens diaphragm opening
liquid slugging
low-heat-duty clay
meteorological experiment
methylpropenoic acid
Mollugo
Mouguébéya
munida striola
over-shoot video amplifier
PABX
parous
Pertek
phytoprotein
pish
pitch(ing) axis
portulacae herba
prefactors
present progressive
propryete
prowl-car
quare
quick coupling with cylindrical heads
quillais
radar air traffic control center (ratcc)
radix arcus vertebr?
replenishment quartz sand
RMLI
segmental coupler
semi-dwarves
seminal receptacle
Sifarasso
small ore
sodium water (heat)exchange
sodos
specularities
supporting kenozooid
surplus social purchase power
temporary wilt
tetramethylarsenium hydroxide
three phase short circuit
three-phase alternating-current supply
topiary garden
touchprint
trichomanes motleyi
U. C. R.
unharness
Vayk'
velocity pull-down
vessel traffic control center
virtuosoes
wcal
wellesley
wolp
your marbles
zero-input terminal