水化学指标

[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(153) / 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(122) / 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(118) / 评论(0) 分类 CNN2013年(九)月

Tokyo Electric Power Company says up to 120 tons of highly radioactive water may have leaked out of the crippled Fukushima Daiichi nuclear plant. Masayuki Ono is a spokesman for the company, which operates the nuclear plant. We followed correct proce

发表于:2018-12-19 / 阅读(124) / 评论(0) 分类 英闻天下

(TAIPEI,China Post)Four liters of water can cost a Taipei man NT$200,000 and possibly five years in prison. (中国邮报台北报道)四公升的水可能要一位台北人付出二十万元新台币的代价,另外可能要人狱服刑五年。

发表于:2018-12-28 / 阅读(94) / 评论(0) 分类 赖世雄英语新闻听力通

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(163) / 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(157) / 评论(0) 分类 Scientific American(八)月

Fresh Water 淡水 Fresh water comes from ponds, lakes, rivers and streams. 淡水来自于池塘、湖泊、河流和溪流。 People use fresh water for drinking, farming and so on. 淡水可用于饮用、耕种等等。 People can only drink fres

发表于:2019-01-10 / 阅读(123) / 评论(0) 分类 与美国小学生一起学英文第3册

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(94) / 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(99) / 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(159) / 评论(0) 分类 VOA标准英语2014年(一月)

NASA has accomplished another first. I guess my summary is really cool. Today we kicked up some moon dusts and all indications are.. its going to be a very interesting set of results. As we, uh, approach very rapidly the surface of the Cabeus crater.

发表于:2019-01-22 / 阅读(127) / 评论(0) 分类 自然百科2009年

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(182) / 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(89) / 评论(0) 分类 PBS访谈健康系列

Fridays are awesome. It seems I have said that before. I'm Carl Azuz for commercial-free CNN STUDENT NEWS. It is month and one day until the official end of summer in the northern hemisphere. But scientists say, worldwide, July was the warmest month

发表于:2019-02-03 / 阅读(114) / 评论(0) 分类 英语新闻

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(108) / 评论(0) 分类 英语新闻

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(129) / 评论(0) 分类 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

发表于:2019-02-24 / 阅读(131) / 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(189) / 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(302) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
acanthopagrus schlegeli
addictive personalities
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agony uncle
alpha tolerance
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as big again
aucs
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Chuluut
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eggwhisk
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Erichsen depth index
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George I
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Goole
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hotchpot
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make one's entrance
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mennin
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MGES
MSHRIF
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You may well say
zysbena