单词：chemical-bonded water
单词：chemical-bonded water 相关文章
[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
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
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
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
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
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
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
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
VOA标准英语2014年(一月)
Why Teflon Is Slippery Teflon is the trademark name for PTFE, a type of plastic. If you own any non stick cookware, then you probably use PTFE on a daily basis. You might not realize, as you fry your morning eggs, that PTFE is one of the most slipper
英语时差8，16
Why Salt Clump s 为什么盐会结块？ You probably noticed that sometimes the salt gets clump y . If its really humid outsidethere may even be condensation on top of the salt shaker. The reason this happens is that salt is hygroscopic . Hygroscop
英语听力文摘 English Digest
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
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
PBS访谈健康系列
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
英语新闻
Chemical Rush Brian Mcfadden Chess game, Im the pawn Youre the queen, Im the throne Take me out tonight Make your move, pick and choose Anywhere Im gonna lose Give it to me black or white Feel it coming on Like a pulse in my head Sending chills right
好听的英文歌曲
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
CCTV9英语新闻2014年01月
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
英语听力文摘 English Digest
Why Teflon Is Slippery？ 1954年，法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想，觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上，效果一定不错
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
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
英语听力文摘 English Digest
The Oldest Sweetener, the Freshest Bread 蜂蜜成分75％ 以上为糖类。据市场调查，90％ 以上的人都认为蜂蜜与砂糖、异构糖、饴糖、人工甜味剂相比对人体健康更为有益。蜂蜜不仅是天然甜昧剂， 而且
英语听力文摘 English Digest