水取样系统

[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(192) / 评论(0) 分类 标准美语发音的13个秘诀 CD4

65 野火的燃烧会造成汞污染 ENVIRONMENT REPORT September 7, 2001: Mercury Pollution in WildfiresBy George Grow (Start at 59

发表于:2018-12-09 / 阅读(135) / 评论(0) 分类 自然探索

I think what we've going on here in the last 24 hours is the greatest number of Americans rescued by helicopter Sensakan Katrina.Lieutenant Coral Autoback talking about the sever flooding in Carolado. We are going to have more on that in just a momen

发表于:2018-12-19 / 阅读(134) / 评论(0) 分类 CNN2013年(九)月

Friends who had a swimming pool also had a little sign posted that said, We dont swim in your toilet. Please dont pee in our pool. Despite such widespread admonitions, four fifths of those questioned believe that their fellow swimmers are guilty of

发表于:2019-01-02 / 阅读(180) / 评论(0) 分类 60秒科学

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(180) / 评论(0) 分类 Scientific American(八)月

Coal Industry Blamed for West Virginia Chemical Spill 西维吉尼亚化学品泄漏与煤炭工业 There are new calls for increased oversight of the powerful chemical and coal industries in West Virginia following a major chemical spill that cut of

发表于:2019-01-14 / 阅读(108) / 评论(0) 分类 VOA标准英语2014年(一月)

West Virginia Chemical Spill Still Affecting Rural Areas 西维吉尼亚州化学泄漏仍影响偏远地区 CHARLЕSTON In the U.S. state of West Virginia, a major chemical spill that contaminated a river supplying water to hundreds of thousands of

发表于:2019-01-14 / 阅读(130) / 评论(0) 分类 VOA标准英语2014年(一月)

West Virginia Chemical Spill Leaves Hundreds of Thousands Without Clean Water 美国西维州埃尔克河被污染,影响居民水源 For the fifth consecutive day, 300,000 residents in and around the U.S. city of Charleston, West Virginia, have be

发表于:2019-01-14 / 阅读(175) / 评论(0) 分类 VOA标准英语2014年(一月)

高考英语作文开头技巧大集合 一篇文章通常可分为三个部分,即开头、正文和结尾。这三个部分安排是否得体,直接影响到文章的质量。 文章的开头一般来说应尽量做到开门见山,用简单明白

发表于:2019-01-17 / 阅读(215) / 评论(0) 分类 英语作文

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(209) / 评论(0) 分类 PBS访谈环境系列

JUDY WOODRUFF: A few drips of good news greeted residents of West Virginia today, but the fallout from last weeks chemical spill is far from over. There's finally relief for some of the 300,000 West Virginians who've been unable to drink, cook or eve

发表于:2019-01-27 / 阅读(103) / 评论(0) 分类 PBS访谈健康系列

发表于:2019-02-01 / 阅读(179) / 评论(0) 分类 财会英语

西弗吉尼亚州的化学泄露影响仍在 CHARLЕSTON In the U.S. state of West Virginia, a major chemical spill that contaminated a river supplying water to hundreds of thousands of people is slowly dissipating. Officials say the water restricti

发表于:2019-02-04 / 阅读(124) / 评论(0) 分类 英语新闻

Scene 1 Topic 1 Oil Resources Key Sentences: 1. I do agree with you more. 2. Maybe I'm not able to answer all the questions, but I'm happy to try. 3. I'm honored to interview you. 4. Petroleum, coal, natural gas are major chemical feed stock. 5. Co

发表于:2019-02-06 / 阅读(220) / 评论(0) 分类 能源行业英语

Up to 480 thousand residents in the American state of West Virginia have been affected by a chemical spill that leaked into the states water supply. At least one fourth of the population has been affected by the spill. The president of a West Virgini

发表于:2019-02-07 / 阅读(144) / 评论(0) 分类 CCTV9英语新闻2014年01月

It's a stat that gets bounced around as e-mail-forward wisdom: men think about sex every seven seconds. Even when the idea lacks this mythical specificity and grandiosity (that's 7,200 times a day!), the idea that men think about sex basically all th

发表于:2019-02-17 / 阅读(139) / 评论(0) 分类 阅读空间

natality 生育 fertility 生育率 fecundity 生育能力 birth rate, natality rate 出生率 births 出生人数 parity 胎次 premature birth 早产 life birth 活产 stillbirth 死产 birth peaks 出生高峰 mortality 死亡 mortality rate 死亡率

发表于:2019-02-18 / 阅读(166) / 评论(0) 分类 实用英语

Y: I noticed that fish have holes that look like nostrils, does that mean they can smell? D: Smell, or olfaction, as scientists call it, is an important sense for many fish. Those little holes that look like nostrils are called nares. Nares dont lead

发表于:2019-02-24 / 阅读(161) / 评论(0) 分类 英语听力文摘 English Digest

What was actually interesting to us was not that the bacteria made light, but when the bacteria made light. 事实上,我们感兴趣的部分并不是细菌会不会发光,而是细菌何时发光。 What we noticed is when the bacteria were alo

发表于:2019-03-04 / 阅读(203) / 评论(0) 分类 TED演讲教育篇

What Is Fire? 火是物质燃烧过程中散发出光和热的现象,是能量释放的一种方式。火焰分为焰心、中焰和外焰,温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存,缺一

发表于:2019-03-09 / 阅读(323) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
acrodysosotosis
activist judge
Alghero
ammonium persulphate reducer
aneurysmorrhaphy
angers
angle geothermometer
angostura
Anjalankoski
arcangelo
azure spar (lazulite)
berrey
bestreak
block
bogeyed
breneman
brush-ups
buffaloberries
cadmium trngstate
capsicum pepper plants
charge stock
cnbc.com
code character set
Cojutepeque
colloidal silver
combinational
curatio
custard-like
Dallasburg
dissolved
dogmatilum
down-flow flue
drop height
earthquake magnitude
epipyropids
establishment of dower
fail-safety
five-throw crankshaft
free-silica
gasiorowski
general work flow
get a crush on
goddam
Gryazi
Guinness, Sir Alec
hunt method
in good with
Labiau
lappery
lavalieres
lug plate
management contract responsibility system
mat-tom
mcenery
mediterranean hackberries
minimum producible oil index
mulcaster
natural containment
Neanotis hirsuta
nicorettes
nonexpansive mapping
obnounce
ol' balls
overhead network
palaeobiodiversity
paraglyphidodon xanthurus
parts placement layout drawing
pico-radian
poor-compactibility
pregnant cow
product-mix
production incentives
pseudoglucosidase
pyotr ilych tchaikovskies
radiant heat transmission
rated operating voltage
reticulated mottles
sailing stability
self contained lubrication
semihard wheat
siftingly
single scull
solvent pump
south plattes
split ring seal
sprinter
standby conditions
subjective expected utility (seu)
suprasensual
SWL
toad bug
tritet oscillator
umbilical lobe
value-of-service consideration
vernets
vibrating tine
washbox discharge sill
wax melter
well logging
wingchairs
Yamboya, R.
zakrajsek