单词:deformational strain-energy
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Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene
The flu epidemic intensified a few week ago, but it continued to worsen with widespread outbreaks being reported in every state except Florida. NBC's Robert Bazell reports. And there's new information tonight about this year's flu epidemic and why i
Royal Dutch Shell, known worldwide simply as Shell, is an Anglo-Dutch petroleum company. It is one of the six largest oil exploration, natural gas, and petroleum companies in the world and was listed as the world's eighth largest company in 2010. She
By Luis Ramirez Beijing 10 January 2006 The giant Chinese state-owned China National Offshore Oil Corporation, CNOOC, has reached a deal to buy a 45 percent stake in a Nigerian oil field for more than
BBC Learning English Weekender Carbon Neutral Al Gore Callum:Hello, I'm Callum Robertson and this is Weekender. Al Gore was the vice president of the United States under Bill Clinton from 1993 to 2001. He very nearly became the President in a contro
EXPLORATIONS - Will Physicists Have to Rewrite The Special Theory of Relativity? DOUG JOHNSON: Welcome to EXPLORATIONS, in VOA Special English. Im Doug Johnson. This week, we hear about developments in physics that, if proven correct, could have scie
EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one
By Barry Wood Washington 27 April 2006 Federal Reserve Chairman Ben Bernanke told the Congressional Joint Economic Committee Thursday that economic data will be particularly important in guiding centr
China Seeks New Technology in Oil Deal Tar sands projects run by Nexen are one reason the Canadian oil company is being offered $15 billion by the China National Offshore Oil Corporation or CNOOC. Besides oil sands, Nexen has deepwater drilling opera
Wounded Syrian Refugees Strain Jordan's Health Services Khalaf Rshaidat and Khaled Ghizawi have lived in this apartment provided by a Jordanian benefactor for the past two months. They say they fled Syria after being wounded by government troops and
Russia and Ukraine have resumed the flow of natural gas to Europe, ending a mid-winter standoff that left millions of consumers on the continent without heat or power during 13 days of bitter cold. An official at a metering station owned by Russia's
Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani
Power Your Laptop by Taking a Walk Scientists at the University of Wisconsin-Madison have developed a technology that turns human motion into electricity. In this week's journal Nature Communications, they describe how to power a cell phone or other
The U.S. energy secretary says global warming is proceeding more quickly than originally predicted. Stephen Chu is in China, the world's top emitter of the greenhouse gases that cause global warming, to urge greater Sino-American cooperation to comb
A: Hi, do you know a place that sells cheap cashmere sweaters? B: An outlet carries cheap cashmere sweaters. A: That's a good idea! B: I've always had good luck at outlets. A: Thank you for the suggestion. B: I hope you find a nice sweater.
A: Hello, I'm looking for a shop that sells inexpensive cashmere sweaters. B: Have you tried an outlet? A: Why didn't I think of that? B: Many of my friends shop at outlets. A: Thanks. That is a good suggestion. B: I'm only too happy to help.
By Lisa Bryant Paris 15 February 2006 Experts meeting in Brussels Wednesday and Thursday are promoting a series of measure to fight the spread of bird flu in the European Union. The meeting comes as n
By Anjana Pasricha New Delhi 13 May 2007 Villagers are dwarfed by giant windmills built by the Danish Development Agency in northern Philippines (File) The Asian Development Bank is helping to finance a 100-megawatt wind energy plant in India as part
The Zika virus outbreak in Latin America could be a bigger threat to global health than the Ebola epidemic that killed more than 11,000 people in Africa. That's according to several public health experts who spoke with the Guardian and Examiner newsp
本期内容: The World Health Organisation warned that Zika, a mosquito-borne virus linked to brain deformation in human fetuses, is likely to spread to every country in the Americas except Canada and Chile. Brazil has reported 3,893 cases of micr