四氟化铬 {氟化铬(IV)}

[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(168) / 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(133) / 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(127) / 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(144) / 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(188) / 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(138) / 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(184) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
acromial extremity of clavicle
actuating arm
admissible function
Aethelings
amour
baltic republics
bargainbasement
beyrout
black sonw
bostrychid
bottom side
Brathay Flags
cable end
cataracta complicata
charge engineer
clay pounding
coal bunker(coal bin)
condition portion
conversacion
corporation tax act
customer-driven philosophy
cutting oxygen nozzle bore
decide for
deeds of trust
Douglas-Home, Sir Alexander Frederick
electron-neutrino
elms
enamel colour
fellow-traveling
fiordaliso
fixed attenuator
fruit receptacle
Glyproline
gobitis
goofer dust
hair curler
Hannover
hereditary hypertrichosis
high temperature quartz
high-elongation acetate yarn
Hotham Inlet
humble plants
Impatiens sultanii
inclined line
income obtained outside China
inflation indemnity program
initiating agent
Irish mafia
it fell off a lorry
kenty
Kichmenga
laser diode (ld)
lead sb to do sth
markdown goods
mechine-gun belt
medical beauty
metallic pattern
monoaxial monster
negative working capital
nesting territory
nmeda
osmunda cinnamomea
otto von bismarcks
paripheral zone
payments adjustments
Piston, Walter
plastic foam board
plotting speed
poly theistic
Polycillin
procyclic form
puccinia cenchri
putterface
radio-carpal
Radleys
recoverable booster
redundancy loop
regardless of something
residual byte count
rood beam
root foramina
self-incompatible line
sinking rider
spray eliminator
stoner theory
straight screw jaw
the hindu
thermal logger
throw-out switch
tumble enameling
tuzlaite
twin shaft paddle-type mixer
underground railway tunnel
underproductions
UNDT
urethralcatheterization
vestibular aqueduct
video frequency
ville-de-paris
vision interference limiter
witness monument
wool oil