[化] 二氧化铬

CHAPTER TWO Reading POLLUTUO FIGHTERS [00:09.90]Judy is collecting some facts for a class project on pollution. [00:18.44]She is interviewing Doctor Ray,a scientist,about trees. [00:27.51]Judy:Why are you so interested in trees,Doctor Ray? [00:38.16]

发表于:2018-12-01 / 阅读(495) / 评论(0) 分类 上海牛津初中英语八年级

[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(177) / 评论(0) 分类 标准美语发音的13个秘诀 CD4

[00:04.88]LISTENING [00:07.63]Listen to the description of the three culture sites. [00:12.67]Complete the map of each site based on what you hear on the tape. [00:18.55]List the names and the importance of the sites,and what is being done to protect

发表于:2018-12-13 / 阅读(245) / 评论(0) 分类 人教全日制普通高中英语(必修)高一

[00:05.07]Unit 22 Environmental Protection Culture Corner [00:10.88]The World Wildlife Fund [00:13.93]The World Wildlife Fund (WWF) [00:16.91]was found by Sir Peter Scott in 1961. [00:20.98]His goal was to help protect the Earth's [00:23.39]natural e

发表于:2018-12-13 / 阅读(200) / 评论(0) 分类 北师大版高中英语模块8(选修)

[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1

发表于:2018-12-13 / 阅读(165) / 评论(0) 分类 北师大版高中英语模块8(选修)

Unit 8 [00:02.90]Save Your World!What Is Garbage?Garbage is everything that you throw away. [00:13.06]What do we do with garbage?We bury or burn most garbage. [00:19.54]Burying garbage is quick and easy but uses a lot of land. [00:26.07]Most land nea

发表于:2018-12-17 / 阅读(301) / 评论(0) 分类 河北加拿大版初中英语读物

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(141) / 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(137) / 评论(0) 分类 英文电影预告片填空

Science and technology. 科技。 Carbon capture and storage. 碳的收集和储存。 A shiny new pipe dream. 闪亮的管子 崭新的梦想。 Capturing the carbon dioxide from power stations is not hard. But it is. expensive. A new project in Nor

发表于:2018-12-31 / 阅读(130) / 评论(0) 分类 经济学人科技系列

By Greg Flakus Scientists in Texas are trying to find a way of reducing carbon dioxide air pollution by capturing the gas, compressing it and then putting it underground. This technique could also yie

发表于:2019-01-03 / 阅读(130) / 评论(0) 分类 VOA2004(下)--健康科技

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? You don't have to be a champagne buff to want the best flavor from your bubbly. So the secret to a perfect glass? It's all in the pour, according to a study in

发表于:2019-01-08 / 阅读(138) / 评论(0) 分类 Scientific American(八)月

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(145) / 评论(0) 分类 2013年VOA慢速英语(六)月

You might think it's your colleagues or the pressures of work that's getting you down at the office, but new research suggests it could well be the air you're breathing instead. Scientists in the US have found that the concentration of carbon dioxide

发表于:2019-01-16 / 阅读(148) / 评论(0) 分类 阅读空间

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(199) / 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(140) / 评论(0) 分类 PBS访谈环境系列

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(172) / 评论(0) 分类 农业与发展

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

发表于:2019-02-13 / 阅读(216) / 评论(0) 分类 英语新闻

Drivers in the eastern United States may soon start paying for the pollution made by their motor vehicles. Nine eastern states and Washington, D.C. are launching a system of pricing the carbon dioxide produced from burning gasoline and diesel fuel. M

发表于:2019-02-14 / 阅读(158) / 评论(0) 分类 2019年VOA慢速英语(一)月

Curbing climate change The deepest cuts 控制气候变化 一切为了减排 Our guide to the actions that have done the most to slow global warming 我们的行为指南已经最大限度减缓了全球变暖 ON SEPTEMBER 23rd 120-odd presidents an

发表于:2019-02-16 / 阅读(173) / 评论(0) 分类 经济学人要闻

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
abhiseka
absolute lethal concentration
agree upon
air-flushing system
allergic antibody
autoreinfusion
baccy
balance at the beginning of the period
barometer height
before bed
Breguet hairspring stud
cable-telco
Calatanazor
call distributor
capacitor split-phase motor
carlita
close file
cluster forecasting
commonly-used word
completion contract method
couch-potato
counterdemonstrating
crucial bandaging
cryocardioplegic solution
cumulogranite
data tree
deprecatorily
differential scale
dominant record size
dot address
edge clocked D-type register
effectuator
elliptic eccentric anomaly
expanded film
fafnirs
field warehouse receipts
FMQ
follicles
forked hose
fuel storage and distribution system
fused quartz brick
gang operated
ganglion nervi laryngici cranialis
genus myadestess
glacioclimate
goilk
Haemadipsa
heterocodon
Immelmann maneuver
intrigoes
iron core inductance
kanzakiflavone
key man
kleisath
limit tolerance range
limno-geology
Lindner's tests
look abck upon
m-hydroxynorephedrine
magneto central office
marine sera
meiotic doubling
misguider
mixing thermodynamics
molines
moving crane
multiobservational
multivitamin tablet
neutrality of money
non-uniform distribution factor
nonrepressive
objective program library
offsite
oleic acid phenyl ester
open session
pilot projects
Ponceau4R
postpermanent teeth
practicalize
pteroptrix smithi
reactive dye printing
resinate
reversal inhibition
sement
soleuss
sonic oscillator
spray washer
Strontiopiemontite
submersing
subquadrupl
subvertisements
suleymanoglu
tailor-made microbe
tensile structural plane
time-to-amplitude converter
town-breds
ulcero-
unpiler
Venae portales hypophysiales
verit
wooly faced sheep
zero-length spring