[化] 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(109) / 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(91) / 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(87) / 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(109) / 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(154) / 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(103) / 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(139) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
add-on-board
arotinoids
autologous antibody
Basbas I.
biochemical mathematics
boiler indirect heat balance test
boletus umbriniporus
bored roll
bottom of hole
built-up magnet
calibrate
carmic acid
CAVB
chartbook
citation of honor
coal firing boiler
cogon grasses
colloidal graphite mixed with water
common perch
contragestion
convertible container ship
cruising ability
cyrus field
decibel-log frequency
decisive vote
doughfoot
dust iron
far-infrared ray
fine flour abrasive
fixed grate producer
flight instructor
geophilidaes
hand ... in
hand-holds
have a quarrel with
havelock
high-threshold logic
homeward conference
horizontal bottom furnace
incisurae costales
intercalations
intrabronchiolar
isopalmitic acid
istmo
key sequenced data set
largenose
lehmann alternatives
leptochromatic
live-roll conveyer
locomotive overall height
magneto-switchboard exchange
malak
marchant
Mariehamn
market-roads
mining hydraulic
moving pictures
mud movement
multilevel logical structure
Niphobolus
nissued stock
non-neutral contact
non-thermal
nuclear radiation biology
offbottom
orbital gyri
overland runoff
parachrysotiles
past experience
peierls
Photoforming
pipe wall gage
prompt jump of reactivity
quick adjusting
red tide
rhizoma scirpi
risk-freer
rope yarn knot
Sarkozy, Nicolas
satyagrahas
sclerotising
side-track
signed binary
sinuses paranasales
slip-joint handpiece
spray dryer
stephanitis veridica
strange days
strapwork
subatomic decomposition
TAI-284
Talpa
telemanagement
transfer-of-control statement
tunica interna
turbo electric ship
tylopilus castaneiceps
vancomycin-resistant
voted out
wide belt
yelland
zero-state response