标签：carbon 相关文章
A Silent Killer: Carbon Monoxide Poisoning 沉默的杀手:一氧化碳中毒 From VOA Learning English, this is Science in the News. Im Bob Doughty. And Im June Simms. Winter has brought cold weather to many parts of Earths northern hemisphere. With
2013年VOA慢速英语(十二)月
11 布什否决限制二氧化碳排放议案 DATE=3/23/01 TITLE=ENVIRONMENT REPORT - Bush Rejects Carbon Dioxide Limits BYLINE=Cynthia Kirk （Start at 59
自然探索
VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. Wintry conditions are returning to the northern part of the world. Winter brings cold weather and, with it, a danger as old as man's k
VOA慢速英语2008年（十二）月
Oceans To Hold More Plastic Than Fish by 2050 2050年海洋中的塑料会比鱼还多 There will be more plastic than fish in terms of weight in the world's oceans by 2050, the World Economic Forum warned Tuesday. 1月19日，世界经济论坛发出警
2016年VOA慢速英语(二)月
US Climate Report Says Weather Disasters Will Get Worse A new U.S. government report says climate change is affecting the United States. It warns that the danger of destructive weather events -- from powerful storms to extremely dry weather and wildf
2018年VOA慢速英语(十一)月
New Ways of Tracking Greenhouse Gas Emissions Developed 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
VOA标准英语2013年(七月)
海洋雪有助预测气候变化 As if materializing from a different dimension, the submersible device called PELAGRA slips below the surface and sinks into a research pool at the National Oceanography Centre, in Southampton, England. 位于英格兰
VOA标准英语2016年(一月)
DAVID GREENE, HOST: Come with us on a journey inside the Earth. Well, inside a special layer in the Earth. A quarter of the Northern Hemisphere is covered with what's called permafrost, and for the first time in centuries, the permafrost is beginning
2018年NPR美国国家公共电台1月
And how, you may reasonably wonder, can scientists know what oxygen levels were like hundreds of millions of years ago? 你也许有理由想知道，科学家们怎么会知道几亿年以前的氧气浓度？ The answer lies in a slightly obscure b
万物简史
The secret of the diamond lies in the carbon bond. Carbon is one of the most plentiful substances known to science. We find carbon in plants, animals and our bodies. Carbon everywhere. And yet diamonds are some of the rarest, most beautiful of all su
自然百科2009年
Our planet was spared this fate. The magnetic field generated by the Earths core blocked the solar wind, preventing it from blasting away the fragile air. But the Earths atmosphere was still very different from the one we breathe today. It contained
探索与发现2014年
Hi, everybody. 大家好！ I'm here at Children's National Medical Center in Washington, D.C., visiting with some kids being treated here all the time for asthma and other breathing problems. 此刻，我在华盛顿特区的国家儿童医疗中心，
奥巴马每周电视讲话
DEVELOPMENT REPORT - Reusing Metal Waste Provides Work For Many in Developing Countries By Gary Garriott Broadcast: Monday, April 04, 2005 I'm Gwen Outen with the VOA Special English Development Repor
农业与发展
We began with the meeting with Premier Wen Jiabao, and I was frankly a little surprised he was so focused on US-China Clean Energy Cooperation, framing it in part as important for the US-China relationship, and then also as important for advancing th
英语杂谈
Time magazine included the Yike Bike in their list of the 50 Best Inventions for 2009. The Yike Bike is an electric bike which folds. It weighs about 9kg and has a battery which charges in about 20 minutes. You sit up straight on a Yike Bike holding
新西兰英语
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele
VOA标准英语2010年(一月)
People have been sharing photos of the blue skies in Beijing on the Internet over the past few days. Posts on the topic of Beijing Blue Sky have been viewed millions of times on social media. Su Wei from the National Development and Reform Commission
2015CRI中国国际广播电台
The Water Resources Agency (WRA) of Taiwan has called on people to save water as a way to reduce carbon emissions. The WRA pointed out that the low price of tap water in Taiwan, which has not increased in 14 years, has led people to waste the valuabl
英语听力文摘 English Digest
There is a new substance that is harder than diamond. It's called Q-carbon, and it was created by researchers at North Carolina State University. 北卡罗莱纳州立大学的研究人员研发出一种名为Q-碳的新物质，其硬度比钻石还高
英语新闻
Chinese Academy of Sciences successfully launched a new sounding rocket, Kunpeng-1B, in Hainan Danzhou early Wednesday. The rocket reached a flight height of 300 kilometers for the first time. Its arrow configuration of altitude control system and ca
cctv9英语新闻2016年