[化] 氯化挥发法

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(99) / 评论(0) 分类 VOA标准英语2014年(六月)

By George Dwyer Washington, DC 29 May 2006 watch Gold Prices report Last week the price of gold on the New York Mercantile Exchange declined by 7 and a half percent, the most since 1990. By Wednesday of this week it was down again: 13 percent off fr

发表于:2019-01-06 / 阅读(145) / 评论(0) 分类 2006年VOA标准英语(五月)

By Naomi Schwarz Dakar 21 December 2007 Rebels and government troops in Ivory Coast are set to begin the long-awaited disarmament process on Saturday, a critical first step before forming a new national army is the divided country. Ivory Coast Presid

发表于:2019-01-07 / 阅读(128) / 评论(0) 分类 VOA常速英语2007年(十二月)

Economics Report - Debt, Recession Worries Bring Volatility to World Markets 经济报道 - 债务和衰退担忧给全球市场带来震荡 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 A rollerco

发表于:2019-01-12 / 阅读(144) / 评论(0) 分类 2011年VOA慢速英语(八)月

Financial markets continue to exhibit extreme volatility as investors assess the impact of government intervention in both the U.S. and European banking sectors. VOA's Barry Wood has more. Wall Street trader, 16 Oct 2008 This time stocks ended highe

发表于:2019-01-13 / 阅读(72) / 评论(0) 分类 VOA标准英语2008年(十月)

World Bank Urges Developing Countries to Brace for Long Term Volatility Emerging market economies may have weathered the 2008 financial crisis better than more advanced countries, but the World Bank warns -- it could happen again. Senior bank economi

发表于:2019-01-13 / 阅读(78) / 评论(0) 分类 VOA标准英语2012年(六月)

'My Week with Marilyn' Captures Icon's Volatility In the summer of 1956, Hollywood legend Marilyn Monroe joined the equally iconic British actor, Laurence Olivier, to film The Prince and the Showgirl in London. My Week with Marilyn is based on Colin

发表于:2019-01-13 / 阅读(63) / 评论(0) 分类 VOA标准英语2011年(十一月)

Bakken Crude Volatility, Rail Safety Scrutinized in Northern US WILLISTON, NORTH DAKOTA The U.S. department of transportation recently issued an emergency order requiring shippers of Bakken oil to ensure that the substance is properly classified prio

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2014年(六月)

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(88) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(139) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(99) / 评论(0) 分类 自然百科2009年

The foreign-exchange market外汇市场Fixed rates固定汇率The money-spinners await their fate货币投机者只能等待赚钱的时机A CITY worker looking for a quiet place to nap nowadays could do worse than head for his bank's foreign-exchang

发表于:2019-01-27 / 阅读(106) / 评论(0) 分类 经济学人财经系列

HARI SREENIVASAN: Stock prices just keep going up and up. The Dow Jones Industrial Average closed at a record high yesterday, and so did a closely watched broader index, the Samp;P 500. To help explain what's behind the latest surge on Wall Street, w

发表于:2019-01-27 / 阅读(65) / 评论(0) 分类 PBS访谈商业系列

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(89) / 评论(0) 分类 地道美语播客

Less demand for pork after the festive season of China's traditional Lunar New Year usually causes a price dip, but this year the market has seen an unexpected surge in hog prices. Statistics show that the hog price is nearly 20 yuan per kilogram, a

发表于:2019-02-04 / 阅读(47) / 评论(0) 分类 英语新闻

Chinese shares posted their biggest one-day fall in a month yesterday, with indices closing more than 6 per cent lower after a late sell-off. 中国股市昨天出现一个月来最大单日跌幅,在尾盘抛售之后,沪深股指收跌逾6%。

发表于:2019-02-06 / 阅读(123) / 评论(0) 分类 英语新闻

今天我们要学的词是 volatility. Volatility 名词,意思是波动性。Analysts are warning of further market volatility following a roller-coaster ride last week. 经过上周一周的起伏跌荡,分析人士警告说,市场波动还会

发表于:2019-02-08 / 阅读(58) / 评论(0) 分类 英语单词荟萃

ROME, Dec. 9 (Xinhua) -- The Rome-based United Nations Food and Agriculture Organization (FAO) published the State of Agricultural Commodity Markets (SOCO) 2015-2016 on Wednesday, calling for a pragmatic approach that would align agricultural and tra

发表于:2019-02-16 / 阅读(61) / 评论(0) 分类 英语新闻

Nothing makes individuals more willing to take risks than the sight of other people getting rich. 没有什么能比眼看着别人发财致富而让个人更愿意承担风险了。 But bitcoin is also different from ICOs. 但是,比特币也不同于

发表于:2019-02-17 / 阅读(100) / 评论(0) 分类 经济学人财经系列

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(166) / 评论(0) 分类 《海底两万里》中英双语有声读物
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