单词:isentropic expansion refrigeration of gases
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[00:00.00]UNIT 7 Expansion 7 [00:07.69]2 My name is Lily. [00:11.08]I'm thirteen yeard old . [00:13.40]I live in Beijing with my family. [00:16.35]Every day I go to school [00:18.37]just like other teenagers. [00:20.43]I always get up at seven o'cloc
人口数量增长速度过快。给我们的生存环境带来哪些影响? Alice: Hello, I'm Alice Finn: And I'm Finn. Alice: And this is 6 Minute English! This week were talking about population growth and the effects it might have on the world.
[00:00.00]UNIT 12 Expansion 12 [00:07.10]2 Hi,James, [00:09.92]Thanks for you letter. [00:11.35]You asked about my home. [00:13.58]I live with my parents in an apartment [00:14.97]in a district in the east of Beijing. [00:19.02]I live quite near Beij
[00:00.00]UNIT 11 Expansion 11 [00:09.20]1 One day in England Diego [00:12.71]and Fernanda were very hungry. [00:15.40]They didn't have any food [00:17.34]and they didn't have any money. [00:19.65]So they thought out a clever plan [00:21.78]to get a
[00:00.00]UNIT 10 Expansion 10 [00:08.19]6 Were there any programs on TV last night? [00:13.05]I was out. [00:14.46]No,there weren't. [00:16.34]There was a comedy,but it wasn't funny. [00:19.53]And there weren't any good soaps. [00:21.93]My Family wa
On a restricted site in northern Wisconsin, the hissing you hear is helping scientists see the future. Inside towering rings of pipes, aspen, birch, and sugar maples feed on measured diets of greenhouse gases. Our studies were looking at what forest
IN THE NEWS - European Union Expansion By Cynthia Kirk BROADCAST: December 21, 2002 This is Steve Ember with the VOA Special English program, IN THE NEWS. The European Union has officially asked ten c
The small Ethiopian town of Dukem has some of the most fertile land in the country. It also is home to Ethiopias first industrial park. Dukem is part of a government-led push to turn the mostly agricultural country into Africas manufacturing center.
Rich cities around the world are largely responsible for greenhouse gas emissions, says a new study. The study measures emissions based on the use of goods and services, such as food, clothing and electronics, by people living inside cities. It inclu
Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F
When they wheel you into the operating room, climate change is probably the last thing on your mind. But maybe it should be on your anesthesiologist's mind. Because the gases used to knock you out contribute to global warming. Researchers, including
Scientists Develop New Ways to Track Greenhouse Gases With more than 18 million people living, working and driving in Los Angeles, the city often is covered in a hazy layer of smog. Stan Sander, senior research scientist at the U.S. space agency's Je
By Scott Stearns Washington 08 July 2006 President Bush says the U.S. economy is strong, and he wants Congress to keep it that way by boosting funding for research into new technologies. Opposition Democrats, meanwhile, say the president's plan to c
a very interesting read about the rapid expansion of refrigeration in China: 关于中国制冷业的快速发展,有一个有趣的事实: It is not simply transforming how Chinese people grow, distribute and consume food. It also stands to beco
By Nina Maria Potts Brussels 05 April 2007 Watch Biofuels report The EU is emerging at the forefront of the fight against climate change. Pledging to cut greenhouse gas emissions by 2020 and boost renewable sources, EU politicians seem keener than e
By Mil Arcega Washington, DC 06 April 2006 watch Global Warming report The state of California could become the first to impose emission caps on businesses to limit greenhouse gases. California Govern
By Phil Mercer Sydney 02 April 2008 Australia's first large underground carbon storage facility has opened in the southern state of Victoria. The geo-sequestration plant will capture carbon dioxide from a power station and store it two kilometers ben
BEIJING, March 6 (Xinhua) -- Beijing Mayor Wang Anshun on Wednesday said the capital will work hard to cool down rapid urban expansion in order to address traffic congestion, pollution and resource scarcity. We will make efforts to control Beijing's
LOURDES GARCIA-NAVARRO, HOST: The Republicans' failure to repeal the Affordable Care Act opened up an opportunity for advocates wanting to expand Medicaid. They see one last chance to get billions of federal dollars for their states and cover hundred
今天我们要学的词是expansion。Expansion 扩展,扩充。The Kennedy Arts Center unveiled a $100 million expansion plan. 肯尼迪艺术中心宣布扩展计划,耗资一亿美元。President Obama supported the expansion of H1B visas fro